Also: Teamgames may be "popular", but they are not representative of high level play (As 1v1 is), and so are not anywhere near as relevant as 1v1, and balance should not be governed by teamgame efficacy if it would negatively impact 1v1s.
2v2s can be plenty high level
With coh3 on the horizon there's no reason to ignore team games just to protect 1v1. At this point they should focus on whats more popular, the competitive scene is about to get a whole new game anyway