Here is the note that Mary posted to the Folk DJ listserv -

"I was just informed that my folk music program TRADITIONS will end this week and that my employment at WETA radio will end after 34 years."

What WETA did to Mary is not a secret. I think "dropped" is a good way to put it.   She was not "fired" due to performance issues but her show was "dropped" because of a programming decision.