An infinity of 5s, maybe, @Chris-And-Yvonne0 , but I wouldn't worry at all about it. Location and value are not important to either guests or Airbnb itself.
Guests choose the location for their own reasons, so they don't care that the last guest gave it a 4 because it wasn't close enough to Grandma's house.
Guests also have the price right there in front of them, so they decide for themselves whether they are getting value.
And Airbnb does seem to recognize the arbitrariness of those categories, as it does not include them in the superhost evaluation or send warnings to pull up your socks if those categories drop. Unless that's something new? Are you getting warnings?
The fact that location stars even exist used to bother me ("I can't move my house!"), but I've come to recognize them, and value stars, as a sort of relief valve. There are people who cannot bring themselves to give perfect scores in an imperfect world, so having a couple of categories that don't count for anything works for both sides.