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.
“… Because he puts an addictive chemical in his chicken that makes ya crave it fortnightly, smart arse!” — Stuart Mackenzie
That’ll learn 'em.