Wouldn't it just be a different play style, like in Trackmania people use keyboard/controler/joystick/steering wheel and they are all on the same leaderboards right?
Maybe! I'm not sure that there would actually be a huge advantage to using a controller.
But I feel like this is difficult to test without adding it to the game, at which point removing it would be difficult.
Ok
I think the only advantage would be more precision but it would be much harder to master.