Surely this is a good thing though, no?
Think about it. People hate the warrior stacking meta. If you warrior stack, there’s not enough gear to go around. Therefore, you’re encouraged to mix in mages/warlocks/hunters etc to lighten the load.
Seems like a very positive ecosystem to me. However the era pvp system then decimates that concept, since melee can just avoid raiding and spam AV until half of their slots are set until Naxxramas.