Simply the programms at anet can't handle the code. The people that built up the game are long gone. Look at ATs. The moment they put swiss stuff into the code they started breaking and it's been so bad they had to cancel monthly. Today's squad UI - literal whole squads crashing on ready check. The code is a kitten mess. There is just no way they can ever implement any new piece of UI to the game without it being bug ridden for months on end. That's why there's no 2v2 ques. I'm p sure they know it would bring lots of players but who cares lmao right its gemstore game anyway lolkekxd. Last time we had 2v2 ATs event like what 40% of them bugged? They never ended up realeasing the promised 3v3 event. There's no hope.