Dumb fight, simple as that.
Phase 1 isn't bad at all. But, at 20% the fight becomes completely based off of RNG. We got him to 20% 5 times with everyone topped off but due to RNG, both tanks died and the 2 shotting of dps started occuring.
We killed him on our 6th attempt after our first tank died and I miraculously parried his attacks for 10% of his hp until I died.
And yes, we do use BoPs, feigns, spreading out, ect. doesn't change the fact that a class with no aggro dropping abilities like a warrior will end up dying.