It's not the tanks responsibility to explain mechanics, so I'm not sure I understand why that would impact a tank more than anyone else?

What I found to try patience for tanks was how impossible it is to please your party. Pull too many and people complain, don't pull enough and people complain. Move too fast, complaints, move too slow, more complaints. I've even seen healers complain about how a tank used his skills, when the healers advise was completely wrong, I feel like no role quite puts you under a microscope of personal opinions like tank.