What would a new tank even contribute at this point

[Thurmnmurmn]

i recall in 6.1 mch being excluded from pf for no damage, trust me this will bleed into even savage and ex's. and even if it didnt. this is a horrible idea that will punish anybody who wants to play those non -meta jobs

Yeah I remember that. I played a decent amount of mch back then and I can't recall ever actually experiencing anyone denying me for playing it.
A lot of people talk about it yes. But the actual actions I guess were mostly in the elite groups.

Imo FFXIV is way better equipped than wow for creating imbalance in jobs.
You can play all jobs on one character so why not give an incentive to play other jobs.
And also the usage of DPS meters is "technically" not allowed. So only those who use them would even know/care who isn't up to par.