I swear to god people don't even read the 'other side' of the argument. Nobody wants a 5 stack premade stomping 5 solo players. That is so obviously a terrible idea it amazes me people think this is what is requested. Literally no game with PVP would do this, can we stop already.
If a duo is in the match, the matchmaker puts a duo on the other team. Literally perfectly balanced and duo q is implemented. Job done. How is this so hard to comprehend?