Oh on a side note, look at how the bard was implemented in FFXI. I think that is a little more extreme of pure support for FFXIV, but people always welcome a bard in your party if you were good at managing your effects. What also helped to make it really fun is that they had buffs or debuffs based on elemental effects. So, if the mob is weak to fire and you reduce the fire resistance even more since you had a BLM, then it was extremely powerful combo.

The side thing though is that a true support class cannot solo while a lot of this game is designed that at least for the side quests and MSQs, you are supposed to be able to solo.