Things being OP in a PVE game is of concern to people that are a class that is not OP. E.g. I'm a warrior and I've already experienced getting benched or skipped to do something because I don't have a stun on a short cooldown and I don't have as much mitigation as a paladin.

If people are the UP class like (Mnk) no one wants to take you when they can take 2 blm's instead.

I find melee to be underwhelming in general in this game and would prefer an AK run with 2 ranged dps over 2 melee dps any day of the week. It makes the wall easier and go quickly and the whole dungeon clears 40% faster with ranged dps.

Based on what I've seen,
Ranged is putting out more dmg than melee,
Pld's are the preferred tanks overall and warrior is kind of just there atm, they can do it but people would rather have a paladin making me second choice
and mnk is pretty up, or people don't know how to play it.