Wow, thanks for taking the time to write incredible feedback!
You are right about the noise mechanic, the monster does always follow the player even if you make no noise. There were plans to expand the system, interactable objects in the world that emit noise to distract the monster, cabinets you could hide in to mask your noise, but time be damned we didn't get it done.
I appreciate the tutorial feedback, they are important even if people don't like them. There was supposed to be more to the tutorial task but the build just decided to not include it :(