You linked MHz, though. We can do the entire pot/kettle thing back and forth, but the entire thing is, why do you think MHz is correct?
Also, I mention others raising complaints, because take a look at the following two topics:
Both players claimed that the matchmaker was systematically forcing both of them to play with “bad” teammates. Turns out both players were wrong, and quick tilters. It’s really hard to have sympathy for so many players that think this way.