Amazon uses the exact shape of Numenor on their map that is in the book Unfinished Tales, and is only found in Unfinished Tales: as well as place names within Numenor, such as Meneltarma, or Hyarrostar, or Armenelos, that are only found in Unfinished Tales. They’re not approximating anything: they’re using things that are in Unfinished Tales, and only in Unfinished Tales. If they didn’t have the rights to it, they would not be able to use those names or that exact shape of the island that they use on their map. It’s not about it’s location.