Im well aware of that, I addressed you because you're claiming that mch has to much utility as it is because it is a selfish dps. I just used the two jobs you mentioned as a comparison. MCH has less support/utility than SMN and SMN has become almost as mobile as the range physical category, and has a typically higher Rdps than mch. So the only thing mch actually does better, and only by a slight margin, is mobility. Which you want to sacrifice. To be a better selfish dps, mch would need personal utility, meaning even if you give it only self target abilities and buffs like you mentioned, is still adding utility.
I think you forget that MCH was originally a support job. Its turrets would restore MP/TP depending on which was deployed, a form of party support. They had a knock back, even if it didn't work half the time and they had mitigation. And they could stun, silence, and heavy their target. If you cared about class identity and thematic value you wouldn't argue for a purely selfish dps stand point, because mch wasn't originally designed that way.
The biggest mistake the devs did with mch was gutting the turret system and removing any identity the job had and focusing only on the gun and robot. Now its person doing flips while firing a gun who occasionally summons a robot. Even its core "not gun" abilities like drill, air anchor, and chainsaw are just other versions of their gun. Where's the machinery, the grappling hook jump back, the different turrets that do more than sit out for 10 seconds, the ability to throw up a mechanical ball that splits into pieces like ricochet and creates a shield around the target and nearby allies, the grenade that explodes healing allies within so many yalms, or one that is an aoe damage centered on target.
The queen is supposed to be the mch crown and glory, yet there are no abilities that tie into the battery gauge and there is absolutely no synergy between the heat and battery systems. Why doesnt wildfire also act as an aoe, or why doesnt auto crossbow reset the ogcd of ricochet like heat blast does for Gauss round?
I have mained MCH since HW and I remember MCH before it was the selfish rphys dps. I love the job, its why I still play it even though it is not in a good place and hasnt been since shadowbringers. But by its history, its lore and design, it has always been a support job. If they want to make it the selfish dps, then fine, but it needs abilities, utilities and support to be able to claim that title. Which it clearly doesnt have right now.