There are a lot of hypotheticals, but for me it all boils down to the fact that a good writer can make it work without breaking the setting. So yes, I agree in a broad sense.
That is the issue. There are few writers that have the talent and discipline for that. Most of them pull a Bendis and fill the universe with themselves without caring about pre-established lore. If I were to be asked to make a story set in Middle Earth that is canon, you bet your ass that I would try to make sure it fits. DC and Marvel are largely the same. You are coasting off an established universe, this isn't the time to start your story with "the Earth blows up". Save that for your original work.
“Shared universe” is a bit of a loaded term, because comics have gone way past the point where there’s any sort of balance. Everyone major hero has done overpowered things. I would argue comics are way past the point of being “realistically contained.” Power creep is a huge issue in canon comics.
All the more reason to care about that stuff.
Follow me on this:
Villain is as strong as Superman. But it isn't enough to be told that. We need to SEE and FEEL it both. How do we do that? We have the Villain cause damage. He pick up a bridge and tosses it to another city yelling "CATCH!". He wrecks building and kills people. The stakes are high. Superman arrives and they fight. Villain cheats by bringing others into danger to allow him to land hits at Superman (and because he likes hurting others). As Superman tries to save people, the Villain takes a leave to another city to destroy. Fight resumes and the other city gets wrecked too. The Villain gets defeated but he destroyed 3 cities and is nearly impossible to contain in a prison.
That is a story that would fit in a Superman title but is hard to implement as the amount of damage said Villain would need to cause in order to be taken seriously as an equal to Superman would be enough to affect multiple titles. A villain with Superman-level power and a ton of bloodlust would affect all of the Earth. That is the short of world DC is set in. If we were this close to an Armageddon, it would shake the world and that would require planning. No way would editorial approve it without making it an event involving many heroes. A threat to Superman is a threat to the entire planet.
That is why it is easier to have Superman fight Lex/Metallo/Livewire/Atomic Skull etc etc. They might wreck a building and damage Superman a bit but the effect on the universe can be contained to one title.
You’re a One Piece fan, so I get that you like a grounded world, but that was only possible because Oda controls everything.
One Piece is a story that is internally consistent. It doesn't make sense in our world but in its own universe, it makes sense. That is all I ask for DC and Marvel.
DC Comics is, and has always been, a mess.
So? It will remain such unless they give a damn.
If you’re talking about official media, you’re more likely to find a “balanced setting” in cinematic universes and cartoons or somewthing under the oversight of few people.
Yeah, that is largely better.