@ lonan - this might not help "cutting edge" content but I don't think it was designed for it. I think the change is a result of Warriors wanting to do content they outgear and having issues. I certainly don't have issues in Ulduar...but the big (solo) trash hits me for like 20k a whack. Heroic 5 mans are a different story (and you can bet your ass this will be handy with the badge explosion to help zerg some heroics for new gear.) This will help a LOT in older content and even progression trash (multi-mob) situations. Also consider some talents are better for different tanking situations...on a normal boss fight this is a waste of 5 talents...they hit so hard but on trash or add duty, it makes a lot easier. I think for most situations this is a great way to spend five talents.
@bluespirit - I agree this is some sort of a band-aid but this is a fix that is worlds better than what we Warriors have currently even though it is a band-aid. I /agree it should just be a passive stance ability but I'll take having to spec out of some arms talents (that I hated) for more prot talents (more prot, morez win) and have a WORLDS more enjoyable and fun play experience.
Former healbot now a Disgruntled protection warrior.