Glad to hear you like it! I am aware of that bug though it is partly intentional. The idea is that the player poses no threat when they are restrained at over 100 restraint strength which is why NPCs don't care about the player. In the following updates I want to change it so that some NPCs will still want to leash the player regardless of the restraint strength level.
The reason why the player needs to be able to traverse the room while restrained is because the Sub playthrough will require it.