The trend the author is seeing is not just on Ouya. 'Sportsfriends' on PS4 (and PC soon) has four unique games as good as any he played for local multiplayer. Towerfall is better on PS4. And many more like these the pipe! I heartily recommend Nidhogg when it comes out for PS4 later.
If you have a PS4 and more than one other local person to play with occasionally you must be Sportsfriends right away!
But the PS4 is $400, and makes a lot of heat. The Ouya is $100 + money for other controllers (which could be Ouya, PS3 or Xbox controllers). If you just want Towerfall and Nidhogg, the Ouya is a much better deal!
If you have a PS4 and more than one other local person to play with occasionally you must be Sportsfriends right away!