So redmercy's journey to masters series shows an intrinsic flaw in matchmaking.
and that flaw is skill. Most of the games he loses in the series are due to someone on his team being bad, being at a rank they wouldnt have been capable of climbing to without being boosted. When you do everything in your power but the people around you fail harder than that there is a very large, very clear problem. Lose streaks of 10 or more simply should NOT be happening in a remotely similar skill environment.