Ok..I've read in a couple more places the same thing. So while as a protection warrior I LOVE this, want to share a couple down sides. Positioning the mobs will now be slightly more difficult. Mobs with directional AoE's many now turn toward the clothies and fire one off before the tank can reposition it. Second, Rogues will now have to do a bit more work to stay behind the mob. Third, secondary tanks may have to chase after the mob to make sure they are still in range if they need to immediately pull it off, as will melee toons. Fourth, it's possible that ranged attackers may have to move to get back outside the minimum range.
Again, I love this as I believe it will save many wipes. I also makes my job a bit easier. And no longer having people whine at us because we got feared and weren't able to pull the mob off them before they ate the big one (which wouldn't be a problem if they had a threat meter up and slowed down the dps a bit when they have alot more threat than the secondary tank).
If anyone sees flaws in my logic please share as I'm always open to suggestion and comments.