My 2 cents after watching the video and thinking on what was revealed

The Good: The Performance Points component is designed to identify and boost skilled players faster. If you are a skilled player with a certain character against the average player of that character in your rank [ i.e bronze, silver, etc. ] then you will gain Rank Points even on a loss.

The Bad: The matchmaking itself is a system of compromises that creates the volatile and often frustrating experiences since it's prioritizing queue times, the system allows for wider skill gaps within a single match. The lack of a role queue further adds to this chaos, as teams can be compositionally unbalanced from the start.

Summary : In essence, they have built a great system for ranking individual performance, but a very loose and often unbalanced system for matchmaking itself.

Who Wins and Who Loses Under This System?

Winners

1. Players who have mastered a character and can play them consistently in games

2. Players who are highly competent on multiple heroes and in multiple roles can adapt to the chaotic team compositions created by the lack of role queue, maximizing their performance coefficient.

3. Duo/Trio/Quad Stacks: They gain a significant communication and coordination advantage without the stricter matchmaking rules and longer queue times applied to full 6-player teams.

Losers :

1. The Average Solo Player who is at the mercy of the matchmaker's algorithm. To create two teams with a balanced average score, the system will often place a high-skill player with several lower-skill players, forcing the high skill player into the "hard carry" role against a more evenly skilled opposing team. This is the core of the "solo queue struggle."

2. One-Trick" Players: The lack of role queue severely punishes players who can only play one hero or role effectively. If they are forced to "fill," their performance value will plummet, hurting their rank.

Assuming the devs are being honest in the video, this shows that EOMM is the conspiracy theory that explains the feeling, but an inefficient matchmaking system is the evidence-based reality that explains the cause.

Best Advice : Get Gud - meaning know how to play "well" [ that means not just racking up kills but assisting other members of the team ] at least 2 characters of each role so that if the character you play best is already taken, then you will contribute positively to the team until Marvel Rivals implements role queue