Right now the reason is unknown. Apparently this has never happened in the boat owner's 12 years in the business, nor the Captain's even longer tenure on the water.
The trip was scheduled for three hours, the half-way point being 1 hour 30 minutes before we turned around. We left ten minutes late. The coast guard showed up about an hour later, but didn't board or turn us around for another 20 minutes.
If they did target pornographers, they did it in such a way that it spoiled nobody's fun - not the charter, boat owner or business people who, via a huge money-generating show like Internext, help boost the local economy via excursions like the 2much Yacht Cruise and off-site parties such as those hosted at Nocturnal, Giorgio's Grill and the Solid Gold VIP Club.
My bet, beyond a randomly selected check procedure based on nothing but rotten luck, is that, if there was some alarmed cry from a concerned citizen, the coast guard managed to respond to it in such a way that said concerned citizens couldn't say nothing was done, and neither could the attendees and foreign visitors to sunny Hurricane-ravaged Florida leave with a bad impression of the forces of order or the experience as a whole.
Nonetheless enquiries are being made and further posts or press releases will be made when confirmed info is available. Until then, it was a pleasant, silly diversion during an already event filled show and party.