I think it’s unfair that DRK should have a harder time in dungeons compared to other tanks. It’s not like mitigation matters to high-end raiders so mitigation should be balanced to dungeon content so that all tanks are on equal footing. High-end raiders only care about damage numbers so as long as damage numbers remain equal, they won’t complain about mitigation being based about dungeon content. I don’t see how “dungeons are easy anyone can clear” should be a reason to not balance to dungeons. I shouldn’t have to rely on gear or hope my healer is good at the game to be able to clear a dungeon on a tank.