pally tanks already have a myriad of defensive cds - i really dont think we "need" another, particularly one out of our control that, as mentioned, in all likelihood would only delay your inevitable death by a few GCDs (heck if you've already "died" once then something's not going to plan....)
the dps cloak proc IS always useful as several people have already mentioned.
Blizz has already given us plenty of tools to survive - we really dont need any more in our current state. Stand in fire, moar deeps.
---------- Post added 2013-07-02 at 09:47 AM ----------
this is what we want tbh
i dont want the "tank" legendary buff