That's because Frontier and Allegiant didn't apply for the exemption like we did and if they did, it was already approved by the DOT which I highly doubt it. They just went with the final DOT's ruling and added flights that they cut.

"In January, Frontier officials announced they were suspending operations in Mobile and the last scheduled Frontier flight was scheduled to take place April 22. That obviously changes with Monday’s announcement."

https://www.thecallnews.com/2020/04/...lando-flights/