Yeah, I'm pretty sure Yoshi-P said we'd be able to change how WE see Dami-Bamahut, that is, it's client-side instead of server-side, so yes, only whoever changes the Bahamut side sees the new size.

Also, yes, I get SMNs are glad they finally have the big ass egi they wanted but it's still not that fun when it pops out and blocks half the AoEs... >_> this way you guys keep your dragon and I don't get to freak out and Displacement the wrong way,