It's a Final Fantasy game, pvp has never been a priority which is why 2.0 wasn't launched with it. Final Fantasy 11 was the same way. PvP was added for the minority who believe that no mmo is complete without pvp.

I hate to say this but if you want a pvp fix you may need to keep a game like Guild Wars on the side. As far as I know, only the Guild Wars series was built from the bottom up to have balanced pvp that is equally as important as their pve (in some cases more important than pve).