Before we were hosts, I gave them a 3 or 4 star rating or didn't bother to rate. I didn't know any better. After we became hosts I tried to change that but unfortunately that is not possible. Now I give 5 stars overall if it was as I expected.
We sometimes get a 4 star rating on accuracy or location. It's because they can't find the house or it was not "right" on the website. (we have a very well written check in instructions with maps and photos). And just now we had a 4 star overall rating by a guest who complained about the cold after they checked out.........
I think I will put something you wrote in our manual as well. It is good to explain how it works with AirBnB, and to many 4 star ratings is not good for hosts.
Ingrid