Yes, you enjoy the full coverage, provided that you do not have the (double) Amercan nationality.
For citizens of the United States travelling to Cuba, the performance of the assistance services or payment of the benefits is subject to the provision of proof that the trip to Cuba complies with the laws of the United States. For more information, please visit: https://www.treasury.gov/resource-center/sanctions/Pages/default.aspx.
The term "United States citizens" refers to any person, wherever they are, who has American citizenship or habitually resides in the United States (including Green Card holders).
If you have any questions about this, we will be happy to help you during office hours on 02 541 91 91.