maybe cause im old and I respect tradition :P ?? nah its not it this time
now image class with:
- plate armor, def stats like paladin
- healing power and skills like WHM
- dps like paladin or WHM what ever here (I can already solo HUNT bosses on map as WHM, its take me like 1 hour to solo them but its possible)
with this class you can selftank and selfheal anything in the game and with enough time you could solo ANY raid
to answer that question that class would be OP, TOO OP / even hybrids with 2 elements are too strong, healer with too big dps is OP too imho (image that class on pvp high healing power and high dps)
what why Holy Trinity exist you are weak in something and strong in something, you can't eat cake and have cake,
that why is it so important that the holy trinity be pure, if you as healer do too much dmg, you away job from your fellow dps budy, its simple to KEEP class BALANCE
I rly wish they make harder dungeons or dungeons hard mode with harder mobs that give more exp and rewards or just M+ from wow :P
EDIT: and one more thing, would you be happy as black mage if your party member healer do same damage as you in raid ? (for example you and he do 10k dmg in the end to raid boss)
(yes yes yes, I know this game have DPS check on a lot of bosses ^^)