Your view is very narrow-minded, and that's likely because you don't play tank, and you don't even do the challenging content where tanks are not as immortal as you claim they are. They are not really that immortal in dungeons, and it takes serious skill as a tank to make it look that way, but we can all agree that Bloodwhetting is very powerful and that you hate that about warrior. The solution is to overcome that with content design and bring the other tanks up to warrior for their tank cooldowns.