Sure, tank specs when they’re good are generally overwhelming or have some really toxic gimmick. But you can say the same for anything in the game at any point in the game.
Locks when they exist on any spec at an S tier, for whatever reason, are proof of this. RMP as a comp has 3 of the individually best classes & specs in the game on the same team. So on so forth.
People just don’t like dampening.
I should add that, people don’t like things they don’t understand, no matter how easy they actually are to counter. I’m fully willing to put my money where my mouth is and get rating on every single tank spec to make a point that you don’t need some toxic gimmick + dampening to win.