Well my thoughts on this are fairly simple! The idea of testing your skill level 1v1 or with a partner in a 2v2 competition is interesting and fun! I feel that they should be implemented into the game personally. After watching the professional 1v1s and 2v2s a few years ago in the magma chamber, then the release of 1v1 and 2v2 in the Howling Abyss for every player. I know a lot of people enjoyed this, me personally, along with many other friends!
Just an idea to throw out there on the Beta Boards.