Anti-fun matchmaking
How was this allowed to happen? Why did all the high level players end up on the same team? All the data in the ranked win/loss column indicates that all players are in roughly the right place, and with the the restrictive queuing system for ranked, silvers and plats cant queue together. This is not intended to be a complaint about the outcome of the match (blue side stomped red), this is merely asking Riot how matchmaking can make a game this anti-fun.