While i do agree that may be he should get a small health or protection nerf, i feel that finally he fits in the tank role. He forces you to spend resources to control him during the fight or else you end up losin a 1v4, thats his way of protecting the glass cannons. For example, you could use your rg with the only purpose of keeping 5s stunned to nulify his impact on the match, but it would mean you are not stunning other toons.
I like the role he is filling, and feel that this is how tanks should work, with "implicit taunts" if that makes any sense. I agree that he is a bit too strong right now though.