Or they could perform an explicit reclamation project, to try to restore the land as best they could to the way it was prior to 1893.
There are more options than just "build more telescopes" or "let the existing telescopes rot". Of course, just letting them rot would be playing to the standard colonial practice of extracting value, then leaving consequences of that extractive effort to the remaining indigenous people.
There are more options than just "build more telescopes" or "let the existing telescopes rot". Of course, just letting them rot would be playing to the standard colonial practice of extracting value, then leaving consequences of that extractive effort to the remaining indigenous people.