When I looked at the Seven Corners policies, they describe all evacuations as being hospital-to-hospital. From the hospital where you are traveling (e.g., Peebles in the BVI) to another hospital. Depending on the policy this could be a hospital deemed appropriate to treat you, it could be a hospital in your home country (e.g., U.S.), or it could be a pre-defined hospital (e.g., U.S. home-town hospital). Policies priced accordingly. I don't have any experience with them, they were just one of the first ones I found that was offering "COVID coverage" when I was investigating.