After further consideration, and after hearing from many players, we are going to change how we approach the 2 vs. 2 arena bracket in Arena Season 7. We still think the 3 vs. 3 and 5 vs. 5 brackets will ultimately offer the best play experience, especially for very competitive gamers for whom game class balance issues are most noticeable. However, we recognize that many players just prefer to play in the 2 vs. 2 bracket and will miss the chance to earn the current season's gear. Therefore, we are going to still allow the 2 vs. 2 bracket to grant access to the current season of gear with three important exceptions: the current season's weapons will not be available for purchase, the current season’s shoulder armor will not be available for purchase, and players will not qualify for the Gladiator title/rewards unless you earn the appropriate rating in the 3 vs. 3 or 5 vs. 5 bracket. We look forward to the changes in the next major content patch and hope to have a great next Arena Season. (source)

While I'm back to being sad about not getting shoulders or weapons... but at the very least, there will be a reason to play 2v2 as everything but a rogue, so that means fewer rogues in 2v2... I'm happy... kind of.