To be honest, Dancer being ranged makes sense. It's historically been very close in function to Bard (I didn't play XI so please no lectures if they're different there :P but from what I know they're not good primary healers). And trying to think of other potential physical ranged jobs is quite difficult compared to some other roles, and Dancer fits this perfectly.

That said, Dancer or not, I do sympathise with healer players that there's nothing new for them...ranged may have only had 2 slots to healers 3, but they are DPS all the same.