First let's discuss what tanks have to manage?
Dps have to manage their rotation
Healers have to manage party health

Tanks have to manage something not just pressing 1 button and now he can have enmity generation
Or position boss at specific point in the map

They have to be much more than a dps who has high defense

Tank should have something to manage like enemy rage or cc or something to make them unique


Tanks are op but have lack of identity of their purpose.. it is challenging for devs really but idk what they can do with it.