What puzzles me is that the format is "classic" Country. That would be the '50s/early '60s audience that left Top 40 in the mid '60s and went to Country. And that audience, for the most part, would be 55+, a demo that radio says it doesn't want.
I don't know why CC did this. I can only assume the oldies format wasn't making enough money. But classic county won't bring in more money... maybe they can run it a lot cheaper, or they think it will make more money by selling it in combo with WMIL.
Classic Country has been put on AMs in several markets in recent years... Quad Cities, St. Louis, Memphis, Buffalo, Las Vegas. Some were on the frequency of the heritage AM country of the 60s or 70s. If any of them got over a one share, they were lucky. Three of those have since been sold, with new formats put in by the new owners.
I don't think classic country really ever works, even on FM, at least not after the first couple of books. Few if any country stations have ever been successful long-term without playing currents.