There's a lot of "my way or the highway" when it comes to gun minutiae, and most of it is completely pointless ego-stroking.
Like, I'm not a fan of forward assists. But that's because I much prefer reciprocating bolt handles, something with a solid connection to the bolt/carrier itself. And with the AR platform in particular the charging handle just feels awkward to me. Even though I've got one and I'm used to it, I still think it feels weird to operate. But the key is that I don't care if anyone disagrees with me. If you like forward assists, good on you. There are perfectly good reasons for it, as the army concluded. If you dislike them, that's fine too. Same deal: there are reasons not to like it, otherwise every rifle without a reciprocating bolt handle would have one. Neither position affects my opinion on the matter, or their relative value.
It happens every time you see two opposing views that are mostly inconsequential. People latch on to their position and won't budge. Some are pro-skub, others are anti-skub, but in the end it makes no difference. Think of it like fandom. It's the gun-nut version of shipping and OTPs.
I think the big hangup, at least for me and maybe the same reason as Karl (but with the opposite perspective) is that people are advocating its use to others which is a lot worse than just having an opinion of it. I, for instance, don' t care that much about what people think about it, but the problem I have is when people like Clint Smith or Karl go and say things that are demonstrably false. I'm hesitant to actively prescribe it since I'm not anyone special, but I can at least present the test data, actual rationale, ichord hearings, and the history of the device from what is in short bad history from historians that were more concerned with other subjects.
Hence the appeal to Stoner (who never did a tour with the M16), the airforce (who generally just guards airbases), on the subject of the forward assist.
For Karl pointing to a SEAL complaining that his HK416 seized up, I'll hazard a guess that there's something about how the HK416 is an ungodly mutation between the AR15 and AR18 as a contributing factor. You don't get things like carrier tilt on an old SP-1 or AR180.
The 416 and many euro guns are overgassed. As an example of this you see B&T /OSS "flow through/reduced backpressure" styled suppressors more popular and more necessary than US mil spec guns vs euro guns like the 416. Stuck cases will happen more often with guns that are extracting earlier (from overgassing.)
The other thing too is that if what
@UVB-76 was saying is true that he just slammed the forward assist before performing SPORTS that isn't the forward assist's fault, that's pure operator error. Now you
could attempt the argument that having the forward assist in the first place is inviting that type of fuck up but then by that logic so is a reciprocating charging handle since you could make that same fuckup with one of them.
Not really operator error on his part. The case was already stuck from the malfunction before the guy would have noticed anything. So there's four outcomes from a stuck case: 1) a double feed where bolt's extractor slipped off the rim from the gas pressure of the stuck round actuating the piston, 2) the same thing as aforementioned but not enough power to pick up a new round (short stroke), 3) the piston was actuated by the gas but the extractor held onto the severely stuck round and the rim stayed intact, 4) or the same as aforementioned but the rim sheared and no amount of sports/tap-rack/etc would fix it.
In case 1 you need to unload the gun and probably still need a cleaning rod to tap it out. In case 2 you could have a short stroke and you might need the FA to slip over the stuck case's rim if it could be pulled out without a cleaning rod. In case 3 it wouldn't make a difference. In case 4 it doesn't make a difference because you will never get that round out without a cleaning rod or some kind of tool to grab the part of the rim that isn't sheared.
People are scared to put some 120 pounds of transferred force if they tried their hardest to hit the FA to the point of being painful, but the powder is putting 50k+ psi pressure on the case walls which is somehow nothing to worry about at the same time. If you were to try to use a forward assist to get a case stuck without firing it, it's not ever going to happen like it will with shooting in a rough chamber.
Those retards also thought the M14 was better than the M16 and back in WW2 thought bolt actions were better than semi autos for fudd reasons. The marines disliking the FA should be a point in favor of it.
The M14 at least came with a chromed chamber, cleaning kit, and was actually a finished product when it was first issued.