Matchmaking. Why is it so bad?

@RaginSamthat video is rel. new, i guess march this year.
And ofc it can be a normal situation, most of my games the sky is filled with those fancy divetrails. The game is very different for some of players, only bcs you dont experience that horsecrap doesnt mean its not happening ! Playing against Preds is not unusual when i queue up, would not bother me if they didnt match me up with the worst they could find for me.
Yesterday for instance, got a gold 4 and Plat 4 as mates (same club) , and they landed straight with the Pred/Master team, they lived for about 10 seconds , how stupid can you be as a gold 4 dropping side by side with a Pred ?!?!? 

There was a loop hole if you quit the game at some point before the coundown ends and requeued it boosted you into a lower tier lobby , dont remeber excatly how it went down, but they introduced the CODE:SNAKE error bcs of that. It got a bit of attention due to a Top 20 Pred was using that loophole last year, so they had to build some "gate" in front, but the system itself wasnt changed, its a vital part of their matchmaking, so they just put some kind of barricade in front to bandaid the issue.
Which made a lot of ppl think why it even works that way and what the intention is behind, some would speculate that it is a perfect solution to give Twitch Streamers a nice Experience so they could lure more ppl into the game.
Just look up the term "Hidden MMR" in relation to Apex, rank doesnt play a huge role in matchmaking, its that hidden MMR.
Rank only prevents you to team up with your silver friends as a Plat+, but easily will give you Silver4 mates if you solo q, i call bs on that.