The thing that I had never understood is why in a room of 4 people, only two could play while 2 just had to watch/wait
Why not just make a lobby, where people reunite, play separately, without interfering on their matches, and then, if A and D wins, they play later while the losers B and C play at the same time
Or if there's only3 people, than you can go to training mode while you are waiting
If lag is the problem, I could understand why only 2 people could play a game, but the rest of the people needs to do something while they wait