I somewhat agree, I think knockbacks are heavily overused. Especially the End of Thorvix Heroic 4. I do that quest once a week to complete the weekly. If I don't need it for the weekly then I just avoid it. I see people looking for tanks there everyday when I go. But the place is so annoying for a juggernaut its not worth my time.
I'm not against knockbacks in general, but I don't want to get thrown around the entire time either.