Yeah, I do. The physics don't look like cars with wheels, and if we are already talking about zero g with rockets, well, people could do that too. The leaping cars look a lot like floaty virtua fighter jumps. Again, it just looked really arbitrary to me.
We're going to get through this together. First, it's not zero g, there is gravity. It's not 100% realistic (to Earth's gravity) since you're able to cling to the walls a bit easier than in real life, but other than that, it's a bunch of cars driving around on the grass. Is it realistic? Not fully, no. The cars can jump. They can do flips once they're in the air. It's a videogame. But within this videogame, they still do very much control as cars.
Now if you're saying that having rocket-powered cars is arbitrary when it could be space-soccer players in jetpacks... first off, you should probably stop using the word arbitrary.
But regardless, controlling a car is very different from controlling a human player. Cars can go forward, backwards (slower), and can turn left and right. They can't pivot. Their momentum is entirely based on four wheels moving forward or backward, whereas FIFA players (for example) have varying degrees of momentum and direction within that momentum. A FIFA player sprinting forward can either slide into a stop and go the opposite way, they can sprint diagonally, they can stop their momentum and pivot at a 90 degree angle.
Then there's the shooting. Humans can shoot with their feet. Aim in different places. They can head the ball too. They can slide tackle. Humans are good at soccer.
Conversely, these cars can only smash the ball. That's not to say there isn't any skill required for the game, because there's tons, but hitting a ball with a moving vehicle in a videogame is very different from doing so with a human. Plus a car's geometry is very different from a human's.
Basically I'm very very confused as to what the argument here is.