No this is the problem, it doesn't work. There isn't enough teams searching. AT team queue would be 30 minutes. It was nearly impossible to get a AT 3v3 or 4v4 game in CoH1 because of this. And by taking away the possibility to get a match in a timely manner as arranged team, you would kill a large portion of the community.
And if it was an option, then every random would disable it obviously LOL.
I think a better solution would be to (almost) remove any ELO penalty that you get as a random if you lose vs a premade team.
well in coh1 that was not the problem as u could use console and avoid getting to play vs premade teams lol.
i dont see the reason why it should be allowed lvl 19-20 premade teams play vs some random lvl 16-14 players just because they want to have fun. at least the mm should give equal opponents and we all know in coh2 mm sucks hard. so disable at temas in coh3 or give only games vs premade teams if random enemies are at least same lvl otherwhise game will end like coh2 again.
not only a large portion of community wants to paly with premade teams but also solo in 3v3 / 4v4