My personal take is that MCH could have a dps boost, yeah... But not as it is. It should be the reward of a complex skill ceiling, and unlike BLM where the challenge is the encounter itself, the challenge should be a complex rotation, branching combos, things to watch for, etc.

But yeah, I also agree that it needs personal utillity. Literally every other job has, even the "selfish" ones. BLM again, got a beefy shield, got aetherial manipulation always usable, for example.