I've always understood the Echo being given to people by Venat as a way to "gauge" them as a possible warrior of light. Now it's being stated that the Echo is just a natural phenomenon that occurs in some people? Like X-Men and the mutant gene?
The Blessing of Light is more than just an anti tempering thing since it was also used to shield the WoL against Ultima and the tooltips do say that the Blessing of Light "breaks barriers" (makes you stronger). I don't know how lore friendly that is, but I've assumed it was. I'd imagine the WoL lost the Blessing of Light. I mean, Venat is gone, Hydalean is gone, the Mothercrystal is gone. What can grant that specific blessing?
Primals themselves are just husks, but they are conjured in an image of a deity or what the beastmen perceive as a deity. I feel like they had something interesting with termpering (how you can't help those tempered and you had to kill them), but they kind of walked it back.
I never really put a whole lot of stock in the job stones. They grant you wisdom of those that walked the path before, but they don't define the WoL. I've always interpreted the WoL being overly powerful because they're the champion of the goddess kind of thing. Dynamis seems so half cocked and thought up. Like they wrote themselves into a corner and Dynamis is how they dug themselves out. It seems kind of contrived and nothing more than a plot tool. Maybe they'll expand more upon it, but I don't know. They were supposed to expand Ramuh's story arc (since Ramuh was hinted at not being a Primal, but being THE Ramuh, but they didn't).
I've always like a more "personal" story. Not some world ending thing that only the WoL can stop. Good stories don't need to have over the top epic shit. But I'd imagine that they'll just keep on increasing the SSJ powerlevel. It's a power fantasy, after all.
The Echo: This was explained back in 5.2, The Echo in short is effectively a power granted through PTSD as Eldibus explained himself. It is a power everyone related to the original world can technically access, but only through a specific PTSD vision can it resurface. Think of it like a subconscious awakening of a version of yourself from hundreds or thousands of years ago, it is faint but it still exists. It isn't related to Hydaelyn, although she does use this for her own needs. The Echo is easily one of the most misdirected concepts in this story due to how they've redefined and reexplained it in recent years, and is honestly a fairly tame super power all in all due to its limitations beyond it being a story telling device so we can have flashbacks. The Resonance being a bootleg echo kind of doesn't make much sense, as The Resonance does frankly more shit then whatever the Echo does in the story. Their is a non-canon theory that the Echo is why we can see AOE markers, but who knows how true that is as the Scions can see aoe markers anyway in solo duties.
The Blessing of Light: The Blessing of Light is incredibly vague as a power boost (assuming it even is one) and has different names as an in-game buffs such as "Brilliant Convictions" being the most common in solo duties and is the one I tend to see the most. "The Echo" is also a buff for really old trials, but obviously that isn't canon because we know what The Echo is now. Hydaelyn's blessing was stated to have saved us from Ultima in 2.0, but if Venat's words in 6.0 are true, then it is very possible it was retconned to something else or the anti-tempering/"Traveler's Ward" aspect is its own thing. The barrier that saved us from Ultima can just as easily be explained as just a barrier Hydaelyn made. The "Breaks Barriers" part is a reference to Limit Break because FFXIV likes to indirectly bring up that term as one of its many FF references, but this has been confirmed to be a Dynamis concept. Remember Limit Breaks were considered an Aether based concept until 6.0.
Even then the question is if the Blessing is like a constant link to the mother crystal, which is weird as the mother crystals was purposefully unused, save for after Calamities, until the very end of 6.0 according to Venat, or if it is like a blessing that just stays with you after its been given? Either can be truth as nothing to my knowledge indicates one or the other. Also the Blessing of Light was supposedly sealed for most of 3.0, but the WoL effectively is the same one man army, so it is dubious how much the Blessing of Light matters to the WoLs strength in-story. We beat up Ravana, One Eyed Nidhogg, the Vault fights, and Bismarck without batting an eye pretty much. The only major thing I recall the Blessing of Light doing was it was used for the sin eater absorbtion in 5.0, but that is effectively just a different form of tempering.
I never really saw the WoL as the champion of a Goddess type character after HW-ish, because frankly Hydaelyn barely tells us shit about anything or what to do. She just sort of exists as a plot thread for later. WoL is more a person who embodies inherited will of everyone they meet, the internal monologues with Drk's journal almost never talk about her really and more talk about WoL as a person who a huge heart with an indomitable will to always stand up and fight for the world and the people they've met. WoL cares more about the people around them then what a stupid rock mommy is telling them
Primals: I know what the Primals are in concept, my point regarding tempering is if you dodge past the mind control, Primals are effectively just a big dumb dragon you can kill like every other big dumb dragon in fiction. They aren't really that special that beating them is a colossal achievement, especially depending on how much you buy into the other players existing as besides ShB it isn't impossible to bring in other adventurers in-theory who also can avoid tempering. Ifrit is just a fire demon, Garuda is a wind harpy, and Titan is a rock monster. Tempering was never really walked back, but we stopped getting put into situations where tempering could happen on The Source after 4.1, so their was no point is bringing it up again besides for Gabu. We spent most of 5.4 talking about the topic even. Also 5.0's light infusion is effectively tempering, it is just called something else.
Dynamis: Dynamis has been a rough concept that upon looking back has been talked about or hinted at since HW, Dark Knight's entire power system and theme with the whole "Darkness = Emotional power, and love is stronger then hate" is based on the very concept Dynamis is explained as how it works. Bard and Dancer also have implications that they use it (especially Dancer), and their are a handful of moments here and there that give someone a power boost when their emotions are at their highest peak that people don't really understand how it happened such as with the end of the Omega questline. As a combat power system it makes about as much sense as Aether, because Aether just lets you do stuff just like Dynamis does, you just need to have enough stuff that lets you do things.
Aether is stronger as a world building and metaphysical element to explain how or why magical things happen, but once you start using aether to shoot fireballs at dragons and hit things gooder with a weapon it isn't that well explained really. Dynamis at least can be explained through emotional highs and lows giving people strength, Aether is just mana and how much mana you have is just whatever the plot demands.
Now if you'll excuse me I'm going to play with these:
