I hope they do do it right this time. While the increased tank dps helps kill bosses faster, it is a burden on healing. I note the difference between our Pally and our Bear. Our Bear favors survivability and requires less focus from me, our Pally when he uses Seal of Insight is fine, but you can tell when he's in dps mode he becomes very spikey. As a result my attention stays on him with rarely a break for minding to the raid.