They have never succeeded mainly for a reason that can't be fixed. It requires 4 people te be online simultaneously instead of just 2, and if any of those 4 have to go during the game, the game is pretty much screwed. And let's face it: tournaments with "walkover" for a result in about half the games aren't fun. Clan 3vs3 tournaments can work around this because there is a larger amount of players to choose from, but if you need the exact 4 correct people to be online, it gets quite a bit harder.