Update
Well I proved to the Embassy that K1 visas are exempt from the COVID-19 vaccine requirements. But it took a extra 15 days before they granted the visa. We picked it up May 3rd. We were hoping they were going to extend the airline exemption for COVID-19 as they did in the previous months but they did not and it expired May 1. So now she is out of luck and has to have the Vaccine to board the plane to the US no matter what. I contacted the Embassy and they won't do anything to help us for setting us behind 15 days. Two steps forward one step back.