MNK should win 1v1 against almost any class, except perhaps NIN (who can just kite them for days.) Like, it shouldn't even be close. RPR might be the closest? Point about increasing potencies is valid and is a huge reason why I'm pretty annoyed that SE's stance on things seems to be JUST MAKE IT DO MORE DAMAGE LOL instead of addressing core issues classes might have. 6k is typically two GCDs, and that hasn't changed - SE is generally just bumping the potency on cooldowns, rather than fillers. And the more damage people do, the more healing (and damage) Riddle of Earth does.
It's fine, for now. Hopefully SE just gives an overall HP bump at some point, though.
MNK damage and survivability is fine for now. I would like to see them change Riddle of Earth to always pop instead of needing a second action to activate (since similar effects like Macrocosmos *do* automatically pop, so it clearly can't be a balance thing.) That would function as a small buff to them.Suggested Adjustments:
Increase Monk damage,retain current survivability: Frontload more potency into earlier moves, and ogcds or reduce the length of the combo string. In a burst heavy environment, monk needs early access damage.
OR
Return Monk survivability(preferred): Upscale monk shielding and healing to match with all the damage potency buffs. If you want to keep monk identity as sustained dps, it needs a way to be able to apply that dps in PVP's high burst and high cc environment. Possibly increase their cc/anti cc kit.
As for not seeing MNK in crystal? Maybe your DC is different? MNK is very common on Crystal, though probably behind NIN. People on this DC seem to recognize how strong MNK is.