Leaving this on just means the screen will shake when you hit the ball which can make it harder to aim precisely. So changing the buttons or keys can be detrimental instead of helpful. When you have muscle memory, you don't think about the movements you want to make and will react on instinct since your body already knows what to do. If you've already been playing for quite a while then there's no point in changing the controls as you most likely have muscle memory in place already which means you will automatically press specific buttons or keys to perform movements. While there is no single 'correct' Rocket League Controls, getting them personalized to suit you is the key for making the game easier to play. How can Rocket League Controls make you a better player?
Increasing the Field of Vision (FOV) is a common suggestion for third-person shooter games since it allows you to see more of the screen and the Rocket League Camera Setting work in the same way. It's a very 'small' change but is something critical to any third-person multiplayer game.
This might sound like it shouldn't matter but being able to see more of the arena and have better control over the camera means that you have better visuals of the game and allows you to make the best decision possible since you can see more of the arena.
