Why?
It should be fine, since the maps will be redesigned and rebuilt in a future update anyways and Dorlly may be in a completely different area.
Right now, most of the game maps are placeholders and the game is currently on version 0.032, which might be drastically different, once the full game is released on version 1.0.
It's important for people to test out systems and bosses, so providing them info and where they're at/ where to test them when they ask for help should be fine.
Also, the creator has provided and used this image lots of times to help people when they ask where she is. Sorry if the above image has ruined your experience in anyway.😔