Regardless of the job if SE were to add a pure support class I see it as a endgame class only and would only unlock after you reach lvl cap. Let's say you beat stormblood story and are currently at lvl 70, you the player would gain access to the support class. This would bypass the need to lvl up a pure support class with limited dps skills and remain a endgame only class.

What do you all think?