Is this really a problem people have? I've run several thousand dungeons and have yet to experience this.

The only problem I see are players not playing their class correctly. Once dungeon run I had a paladin run with Sword Oath and COULD NOT keep threat. I and others asked over and over for them to change to Shield Oath but they completely ignored us. Yes I even used the auto translate but their game was already set to English only language. We ended up having to kick him. THIS is the bigger problem, lazy or uninformed players not knowing how to play their class, or just trolling.