Let's be honest, as a DPS player I'm completely dependent of my healer(s) to do their job and heal me. Why would tanks be exempt of this? Tanks are the most frustrating spectacle to watch those days: they can eat shit forever, break records in vuln/damage down stacks because nothing can kill them but body checks, and they can heal back up on their own (depending on the tank). They even burst better than half the DPS roster, it's ludicrous.