This has to happen. A physical ranged job without a raid buff is fated to be at the very bottom, with little incentive to be picked in a decent group. Considering how RPR and PCT were at release, it is obvious that the next physical ranged is going to make current MCH irrelevant for an entire expansion.

If MCH/BLM/SAM/VPR are not topping the median rDPS charts of their roles, there is no reason to pick them. Now this is much worse for MCH than the other jobs, as SE is still overcorrecting the mistake they made in Stormblood by making the physical ranged as irrelevant as possible, so players will never consider having 2 physical ranged in the same party. And also due to the fact that DNC and BRD buff more than any caster/melee.