I agree after strictly only playing tank spec variations (only run it for rateds now) I have been running deception or madness for some time now and I can admit that the tank spec could use a nerf damage wise. I am just worried that in doing so assassin could be a spec not wanted for rateds. Maybe lower the damage to dark charge but give us some armor back or something.
True, it's not totally overpowered, rather balanced in the wrong way.
Just need a balance for the tank spec to be more tanky and less heavy hitting.