Aside of any other issues, I feel like there would be an issue between auto-pathing and danger from enemies, either way it could be implemented.

Option 1: Makes no attempt to avoid enemies, just seeks a physically walkable route. Your character will be potentially mauled by high-level monsters because you weren't paying attention and the game sleepwalked you into a hazard.

Option 2: Automatically seeks a safe path through enemies. Set your auto-path to the other end of the corridor full of high-level monsters and you won't have to manually sneak past them, the game will do it for you - defeating the entire point of having high-danger areas in the first place.