I think that this game was really well done, although I will agree with the general consensus that the mouse maze section was just a little too difficult. I was able to complete it with the easy mode but it left me unsatisfied as a player about the accomplishment. Is it possible to change that to the default and have a toggle-able "extra challenge" in the settings. It might have the effect you are looking for in the balance. Otherwise it genuinely impressed me. You took what other indie horror games on the platform are doing and took them to the next level in a way that doesn't feel stressed or forced. Keep doing what you're doing!
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.