So you're telling me..

[Mysticunicycle]

Uh, what? DPS buffs that apply to the entire raid are absolutely utilities.

No. It doesn't matter if you do the number with your own hands, or if your magic number make-go-bigger makes somebody else do the number. The number is still your number. If your number from other players + your own number is still smaller than the number of another job that does all of its number on its own (sam, blm, mch), then there is no reason to ever play a buffing job.