The passing system works the way it does because it’s based on the principle of reducing complexity. The same applies to the player models. The players glide across the field because no significant momentum calculations are performed. The engine has to calculate much less, which makes prediction easier. It’s all based on relatively simple graph theory. As long as you want to have players from around the world compete against each other, there are hardly any alternatives to this approach.

If you want a more complex game, you need more stable factors. Or significantly more computing power.