Matchmaking

Riot wtf is this http://imgur.com/a/hGbTV Two unranked players and a silver 2 player going up against 2 diamond 5's and a master(53lp). Wtf is that matchmaking? And it's not like they've lost so many times their mmr has dropped to 1300.The team they're playing right now is called "Psyco cheer up buddy". Correct me if I'm wrong but I'm pretty sure shit like this isn't supposed to happen. Why the fuck is the solo queue rank not being taken into account at all? It has to have at least some bearing on the game but it's completely disregarded because the diamond+ team has only played 4 games.