Matchmaking has changed a lot. Trust is doing wonders for most users and vacnet is filling overwatch with blatant cheaters.
People like to jump on it because of past experiences, not willing to see how much the game has changed.
Besides, if you think your trust is too low, you can always send an email to valve asking them if they can reevaluate your trust factor rating :)
whoever hasn't reached supreme/global before the f2p update shouldn't play mm at all
MM might not be perfect, but at higher ranks (I guess probably from nova 2 or 3 on), it's pretty good experience. And man, how do you play faceit free queue? I only get silvers on my team that play cause banned on mm and tryhard 5 man parties or level 7 or 8s that just play for warmup on enemy team.