I still think rotational complexities could be enough to make MCH not be an instant pick should it ever hit melee numbers, mainly RNG, compounded by things like old Wildfire where its damage scales off damage done so you need to manage resources and play around buffs even more carefully.

Range tax only really makes sense when there's enough moments where the other roles can't attack and lose enough dps to be a lot closer, but that heavily relies on content and the other roles keep getting more tools to keep uptime on top of that, so we instead have a higher skill ceiling on non phys ranged jobs while phys ranged get the easy label.