I spent a long time trying to come up with the perfect word for what's happening to shadow priests on the beta right now. At first I thought up déjà vu, but that didn't seem quite right (and shut up, I know that's a phrase, not a word). Then I got bored and played Civilization 5 for a while. Then I made a sandwich.
I don't know where I'm going with any of that, but I did eventually settle on a word: backtracking. That's what happening with shadow priests -- Blizzard is revising the class and hastily making a retreat on just about every unpopular decision it's made over the last few months in the beta. Two weeks ago, Blizz did it by backing down on its decision to axe Devouring Plague. This week, it's backtracking again, giving us back yet another thing it had axed going into MoP.
Is that a good thing or a bad thing? In a sense, both. But we'll get into that shortly.