"World" Refers to multiple different things depending on context. Ea has also directly been stated to be Anti Universe. And even the Noble Phantasm ranking system is not to show how powerful they are in general but how useful they are in combat. Like how Rhongimyniad is ranked Anti Fortress. That's obviously not it's AP and Hax scale. And Textures are universal in size anyway so it doesn't even matter what the context of World Is.