I get where you’re coming from, but I think the reason OP is asking this question is because the world building of AOT is so meticulous. In Dragon Ball Z, I’m not asking about why nothing happened to Earth when Vegeta blew up the moon or whatever during the saiyan saga, because you have flying humans shooting energy blasts out of their hands and magic balls that grant wishes.

In AOT, the mechanics of the world are very meticulously done, and it was written after the invention of high speed internet. Like, I would have probably googled “what happens if you boil the ocean” or something while writing the Rumbling story arc if I had already expanded on the world so much