Probably good for spectators/stream monsters, but sucks for a lot of non-major players. Like if as a random dude I want to go to Evo but don't have a training partner I'm going with, I'm fucked. Or if I'm going with a group and there's an odd number of people. All sorts of weird logistical issues, plus requiring you to actually practice 2v2 instead of 1v1. Will probably be great for spectating as well as making the brackets go way faster, but I totally see why people in smaller scenes are pretty unhappy about this.
It feels like with this, gems, the online issues, and the complete clusterfuck regarding DLC, this game has gotten pigeonholed into this weird corner. Between the online issues, timeouts, and DLC clusterfuck I returned my copy pretty quick. 2v2 is the only thing I even enjoy watching streams of, 1v1 is pretty boring honestly.