WTF are these pairings!

So i have been playing a lot of Team Builder lately. I feel like the team pairing is a little bad. For instance, I just had a game where we got a random ADC who happened to be Platinum V. No big deal, except for the fact that no one in my group was over Silver III. Needless to say, we had a Platinum V ADC so the matchmaking put us up against another team who had a Platinum V. No big deal once again, except for the fact that they were a complete team and we only had 3 friends on the team. I guess what I am trying to say is, even if matchmaking is an even team, keep the Elo's separated. Can we work on this, Riot?? It definitely took the fun out of the game. Not fun going 5/25 as a whole.