I mainly que up solo. i even stopped accepting friend requests after games because Id rather not go in premade.........but that doesnt stop me from being on a team of premades. That system will match you evenly. if your team has a premade of 2,3,4 or 5 on it then the other team will have a premade of 2,3,4 or 5 on it. I've basically figured that out just by asking and checking match histories after games. During a game 1 time i seen people on other team with same clan tag and its 3 of them ill ask which 3 on our team are a premade if i dont see any clan tags and sure enough we had a 3 man premade on our team. So many times after that ive asked when i noticed it and every time it was even match.
So if you are a solo player on a team with 4 premades the other team will not be a full team of 5 premade....they will have just 4 and 1 solo also. So if the other team is just outplaying your team with beast communication then its just that the premade you got put with and you are just not communicating as good as the other team.
But even with that said I hate DQ just as much as the next guy.....but my only reason for hating it is when u get stuck with the toxic 4 mad premade or the premade smurfs with the clan tag BRNZ5....if you are bronze and u see someone with that clan tag....DODGE.......they are high elo players with bronze accounts that will completely dominate the game...then just when u think you are about to win...they sit at your fountain and let the other team win the game so that their accounts stay in Bronze 5.