Hmm. You have a point.

[In his own world, something on this level wouldn't necessarily be akin to gods, but rather a very powerful Quirk-user. But would a Quirk cause everyone in a city to vanish so suddenly? Or summon people all at once? It's hard to imagine.]

I've been in cities like this myself, but never one that's been emptied like this. Not without good reason to. Which makes me wonder if people evacuated for some reason...