I think it has very little to do with Covid at this point. Entry to the USVI and BVI is pretty easy, and as George noted, the USVI thrived during the BVI Covid lockdowns.

It is about the BVI requirements for charter boats to enter the BVI: your charter company hasn't devoted the money and staff to make it possible.

What does your contract say? Some people's contracts say they can cruise the US and BVI. If they can't live up to that, and if you can find a boat in the BVI, you could try to get out of your original contract. Otherwise you will enjoy your vacation and book in the BVI next time!