Where is the hyperbole? The fact that island today is or may be "deserted," does nothing to diminish the fact of the navigational achievements presumably engendered by the tools and techniques discussed in the article.
Point being: What was once acceptable may not be now, thus inhabited then and deserted now. This also doesn't even touch on resource depletion (see book "Collapse" [0]) or the impact of colonialism on indigenous people.
[0] Collapse: How Societies Choose to Fail or Succeed: Revised Edition https://www.amazon.com/Collapse-Societies-Choose-Succeed-Rev...
Also: where is the hyperbole?