I fear one of the ways Riot might try to "Shorten" que times....
If they try to open up the allowed MMR average, then games will be even shittier. Let's say right now you have to be within 200 MMR of everyone else in the game, and Rito makes it 300. Well now your going to be up against and have both much worse and much better players. More People will just stop playing, and the problem will snowball more.