A lot of people in these threads are confusing

"Is useable"

with

"Is viable"

Just because the DRK is capable of doing the content does not mean they are in an ok place. WAR and PLD are just plain better. Some of the mental gymnastics that people use to prove other tanks arent as good is just hilarious at that. Like saying that defiance isnt real mitigation because it just ups the HP: ignoring the fact that one big point of defiance is that it also improves healing effects. Or how I have many times seen people comparing DRK skills to other tank skills minus the new HW ones.