I'm tired of reading about the 2k dps tanking DT. The Only time I remember doing this it was on Athyr bass with T4 gear a joke fight.
I've never seen a DT doing 2k dps on a single endgame boss while he is able to tank it alone. You keep repeating this and talk about an exception as if it was the norm.
IF there is a DT who claims he can do it. I want to see a video and a selective parse of the fight of 2 different t4 bosses (4 zodiac bosses counts like one). And all of this should be done with an average raid. A raid with 24 players with the best possible gear you can get is not average.