The problem is everyone is trying to play this game like their previous MMO, calm down with the AoE and play smart with CC and positions and things will go a lot smoother.
I've often found myself soloing most parts of the Heroic 4 quests, Heroic 2's are relatively easy but your companion basically counts as another player.
I don't think they are too easy either, if you're getting bored, join in on the damage dealing - don't just heal, this IS NOT your previous MMO.