Yes, but still requiring a 10 man group to use a 3rd tank on a handful of heroics is asking too much considering the dps they lose. I'd rather they nerf something to the point where it's trivial than have a fight require a decently geared 3rd tank even though I enjoy the difficulty of most heroic modes. It's just a strain on 10 man guilds to require them to have 3 tanks when they aren't going to have the benefit of extra players in the same way a 25 man would.