Warrior has probably the best kit at keeping itself alive with a decent party buff that grants an AoE shield instead of magic damage only. Warrior damage is only slightly behind the other three tanks by less than 200 dps. It's not reasonable to ask for a damage buff to Warrior because any damage buff would just make it the best tank again and YoshiP already stated he did not want Warrior to be the best and he does not intend to make changes to tank damage.