You realize that mch was one of the rarest classes to see in StB right? Getting into a raid with them was a nightmare, almost everyone preferred bard over mch, because of the strict ping requirements to play mch at peak performance. Also because MCH's were heavily reliant on server ticks because.. flamethrower for heat.. If you missed your overheat by not flamethrowering enough you completely screwed your rotation and your DPS.

I remember trying to join pf's as a mch player and immediately getting kicked out and receiving a tell to come back as bard or any other class that was actually useful. So do a lot of old mch players, and by the end of StB Bard's crit scaling was so good that MCH was basically a vestigial class that was more useless than blue mage.