Chen Mo's idea was to make Overwatch into an entertainment game, to maintain the core fun of the game.
First of all, he had to remove the threshold and make the game completely free of charge. He could only make a profit from the skins, avatars, and other value-added services.
This was to attract as many players as possible and expand the depth of the whole fish pond, so that most players 'win rate and matching experience were close to that of League of Legends.
Many players might think that it was stupid to force a 50% win rate, but in fact, a competitive game that could not guarantee a 50% win rate was a disaster.
Not being able to guarantee a 50% win rate meant that some players who played well could keep winning, while those who played badly would keep losing. This would aggravate the loss of players in the fish pond, which was extremely detrimental to the lifespan of the game.