I've noticed that several of the NPCs have unique poses/body movements and they tend to emote using body language which is better than nothing, but the facial models as a whole are just... flat, which may explain why the camera loves looking up for behind or from the ground so much... And a close-up for Wakka stubble! in HD! Just what all the fans were asking for!

Yeah, they also have no problem with Rikku joining after she even forcibly tried to make Yuna quit, so... I don't know. Wakka didn't know that, but Lulu and Auron immediately figured it out. And then I don't know how no one mentioned it generally when after that scene you have a lot of NPCs talking about... talk about incredible luck there.