Source:
http://i47.tinypic.com/19oa54.png
You had to have registered before the date stated to get Legacy. And as one of the previous posters mentioned, they've been advertising the Legacy campaign for months.
If you and your friend don't want to play 2.0 because you missed Legacy, then well, your loss?
5$ extra isn't that much, unless you're playing a lot of other P2P games as well. And refusing to play a game simply because you don't have the bonuses (which is really just an exclusive chocobo) is pretty silly to be honest.
