I kind of doubt that. A yacht is considered a floating accommodation and sleep aboards have been offered since the inception of the charter industry in the BVI.

Unless I was misinformed (by government) more than 20 years ago, the cruising tax was introduced as a "room tax" for yachts and the National Parks Trust mooring fee was initiated to cover the use of and costs related to maintaining the pubicly owned moorings at the various parks.

I think the reference is likely to be exactly what the article stated ... that some companies may be offering accommodations (not aboard yachts) without being properly licensed or registered as a villa, hotel or whatever.