It's actually less damage, due to the change to Overpower costing rage, and the necessity of being in D Stance in PvP to survive rage output is not good enough to keep a high damage rotation, maintain a snare, and survive. It's royally screwed. The rage cost of OP is worse then the Shockwave Nerf. Wars on live are already stacking RESIL to stay alive, while having 25% D Stance and a 20s AOE stun, we can't use battle next patch, we wont have rage, our damage will go down, our defenses are down, and we exit arena.
But hey Greg Street will accomplish his goal of getting the rogue population percentage up, which is obviously more important then good pvp balance.