If a tank loses aggro, whose fault is it?

[Dyvid]

Yes but they Should rotate their cool dows to compensate for the lack of stance. Nothing in this game outside tankbusters and large pulls hits hard enough to warrant 100% tank stance usage.

Think of it like healers using their dps skills, they do it because again nothing in this game outside pvp requires them to be in healing mode 24/7.

Oh well in that case then 100% the tanks fault simple because they chose to lose the 20% enmity buff for extra dps. More so in the OP story because that tank was asking dps to not do their job. Just like a healer, if they have control of the fight they feel free to add some dps but you first goal is tank all the mobs. Grit, Shield Oath, and Defiance isn't just about the def boost, it's enmity control too. I guess rotation of stance is what separates the good tanks from the bad.