I certainly think you could, but changing the mouse hitbox like you did really got me to the difficulty level I wanted it to be at and the levels themselves were really enjoyable. I'm just worried that certain players requiring what effectively is advertised as a baby mode to complete the game might not have the effect you are looking for. If you changed the mindset and instead changed the reduced hitbox to the default mouse hitbox and used the current default difficulty as an extra challenge mode with maybe a different ending it would improve the overall experience. Obviously do whatever you want its your game these are just some thoughts from a player.