My last game and fairness in ranked matchmaking, seriously, look

I have a pretty decent MMR, what in the hell is this Riot, the game before this I was matched with Mid plats and zero golds, but the next game I get a silver, low golds and I have to somehow carry that? A silver can't Que up with a Plat player ( https://support.riotgames.com/hc/en-us/articles/204010760-Ranked-Play-FAQ#h3q3 ) but I can get matched with them if they duo? Fix your matchmaking Riot, this is unacceptable, as a Platinum player, that has Platinum MMR, I want to only be matched with Platinum players in my ranked games.