It looks like the last verified contact with them has been in 2018. Recently a youtuber went there and tried to get their attention, but couldn’t find them.
Is it possible they’re not even still around? Maybe a disease found its way onto their island and took them out. It could have even been from the last visitor in 2018.
If they’re all gone, all the expensive protection measures are not necessary anymore, so it’s a very pragmatic question.
I think that they would be necessary still to respect the memory of the fiercely independent people and prevent corporate exploitation of the land.