There's no doubt that some factors do affect this outcome; we just don't know what it is. And it can be completely counter-logical, such as the absurd fact that in this game an attacker has far more changes to score when he is shooting at a sharp angle to the goal than if he goes straight one-on-one.

In fact their system takes into account very big number of factors, such as how the skills of different players in the team affect each other by being in close positions, the ratio between speed skills of the attackers vs opponent's defenders, and much more. It's kinda absurd that they have implemented all this but keep it completely hidden, unknown, and uncontrolled by the players.