I saw a video a while back of some high level streamer playing OW2 with 6v6 and it looked like a real hoot to try as some kind of casual mode.
There’s a certain air around this where even if folks wanted 6v6 as an option some won’t admit it because it’s less e-sporty, usually the type who never shut up about their ‘carry potential’ 
or think saying ‘shield shooting simulator’ for the millionth time is some massive mic drop lol 