The link below should take you to the BVI report.

https://safetyandsecuritynet.org/the-virgins-the-us-virgins-and-the-british-virgins/

Out of all the thousands of charters there have been 11 reported thefts of dinghies/outboards since 2006 in the BVIs (4of these happened same date, time, location in West end in 2007) All of the dinghies that were stolen were not locked.

The last reported dinghy theft was in 2014 in Cane Garden bay where two dinghies were stolen.

Low probability of having your dinghy stolen. But easy control to implement. At the end of the day ask the charter company what they recommend.