Yeah I understand and agree with that, but personally I feel the good aspects of the system far outweigh the poor ones.
What are the "good aspects"?
Shorter MM time?
Games with more people for longer periods of time?
Endless fodder?
Shorter MM time - now there will be more frequent searches for very little net change in total time searching.
Games with more people for longer periods of time - you will still search on reddit out of boredom while you wait for new people to join.
Endless fodder - just means an increase in the amount of quitting.
For those joining in progress... They are spawning into a beating... and are either going to quit immediately, or get dominated, most the time. As the team making others quit, you still don't get a good even match for the entire game, and you now will be joining games in progress where that awful scenario is in place... particularly when searching with a party that is not full.
All that said - I'm not totally against it... I just don't see where the "benefits" outweigh the "costs". Bad kids will quit more often and good kids will rage when they join into a beating... and quit more often. So now people will get selective match making where they choose their own ending. Getting beat? Quit and find another game like kids do in CoD.
Sure one could enforce a quit ban - but is that what a developer REALLY wants? To lock out players from playing their game? Even those that quit frequently? There is a point there where the person just doesn't put the game back in and plays something else where they can play how they wish to their increased enjoyment.