You have the wrong game genre.
This is a Class Based Shooter, not an MMORPG.
I miss any "Tanks from FPS games"?
Tanks in Overwatch need 2 things.
- Stand on the objective better than other roles
- Give their team a positioning advantage
- Either through making it safer for a teammate to stand in a useful location
- Or making it riskier for an enemy to stand in a useful location.
And AntiNade is more of an issue for #2 for half the Tank roster (Which would be the ones mostly receiving the survival nerfs, such as Hog and Mauga). Like for real, those heroes shouldn’t be “nearly unkillable” if an AntiNade isn’t used.