Title.
Tanks deal insane amounts of damage, they have insane self heal and inarguably the best defense and survivability tools in the game (hint: they're tanks).
Didn't Blizzard intend to avoid situations like these, when tanks are basically the holy trinity in unison? I just don't get the idea behind this - I'm playing a healer and it's very comfortable for me, but they seem way too overtuned right now.
What's the reason for this?