People like old Balance (current everything), and people like flavor.
Back in Omega I remember the day the AST and I (Sch usually) swapped jobs and I thought spread Bole would be nice to put up at the start of 11S for flamethrowers. I still think old bole and ewer can be optimal plays for DPS at times, as they were all marginal anyway. Anyway, I digress.
A lot of the shenanigan buffs could be very nice. But obviously DPS buffs are ideal to have a lot of the time. So why can't we have both? A system where you *pick* cards like actions, perhaps paying for them in different ways. Given how the general power level of the healers has sort of stagnated, giving AST an effective 6-10 more ogcds wouldn't really be bad.