It could easily be done, without the use of the traditional FF terms. Because this is not a traditional FF game. Was FF Tactics traditional? How about FFXII? What about FFVII, that game didn't even have jobs to begin with. We don't need White Mage/Black Mage/Red Mage for the game to be a Final Fantasy.

I do like the Barcher, though. At least they're doing something interesting with that.