Opinions: Should tanks work for aggro?

[Ultimatecalibur]

E3S autos popped my TBNs.
Seat of Sacrifice EX did too.
So did Hades Ex thinking about it.
I'm surprised how many bosses have meaty autos to be honest.

Dealing 25% of a tank's mhp in 6s isn't actually that much damage considering that a healer can heal more than that in a single gcd spell. Truly "Meaty" auto-attacks should be expected to require nearly constant healing to counteract.

the autos in this tier are definitely still meaty, as i can confirm from getting chunked pretty hard after tank deaths even after switching to Fists of Earth until the tanks were raised

Tanks have nearly twice the Def/M.Def of the Monk, an inherent 20% damage reduction and between 0% and 10.7% mitigation from Tenacity. A conservative estimate means that an attack only deals about 2/3rds the damage to a tank as it would a dps. Combine that with tanks having 60% more hp than dps and an attack that would kill a dps with 2 hits barely does 40% of a tank's mhp. Fists of the Earth might barely shift a 2 hit kill to a 3 hit kill.