Way to completely go off track with a strawman. Yes, M2 has situational uses. At best, this puts it on par with WHM and AST, which have the benefit of their regen/shield being an instant GCD, but that's still not the point.

A high potency instant nuke every 2.44s or so is a significant buff to AST (and would be a big buff to any caster). You seem to think AST is somehow lacking or falling behind the other healers. It's not; On account of its strength, it gets a slot guaranteed far, far more than the other two.

Oh, it's not topping the DPS charts on FFlogs? That's the price you pay for the abilities to give out crit and damage buffs, among other things, and this is called 'balance' -- when a job maybe isn't the best at one thing because it's very good at another thing. If you want higher personal DPS, play another healer. They don't need indirect nerfs. (if anything, as pointed out, perhaps M2 could do with a bit of a cost cut). If you really want GCD clipping reduced, there's no reason AST should get special treatment over the other healers.