Games might be more fair if match making were random
Because this match maker clearly doesn't work. Or maybe Riot is trying to remove smurfing by allowing you to pub stomp on your main account.
When you're throwing a blue team with two silver, one bronze, and two unranked that were both bronze last season against 2 plats, one gold, one silver, and an unranked who was silver last year, your match maker isn't even trying.