Do you honestly think that people all treat an expansion, update, and new game the same way?
People who dislike the game for it's style will ignore an update because they will still think its the same FFXIV
People who don't want to start a 2 year old game with bad reviews will ignore the game if they think this is an expansion

But if people -know- it's a new game that is completely different from the original 14 they may actually take an interest in it.

It's not like I'm posting spam or useless comments, I backed up the argument with about 10 quotes from multiple sites, and it only took me 5 minutes to find those, meaning there are probably quite a few more like them.