Swapping signals with Cumulus for extra cash makes so much sense that even all the bickering functions at WBAI would see the logic in going along with it.
The problem with WBAI and Pacifica in general is that nobody there can agree with each other on anything. Every time the company gets new management, they're soon out the door shaking their heads. Now, this doesn't have much to do with political ideology. I can think of plenty of dysfunctional stations run by eccentric right-wingers that make lousy business decisions too. Only thing is, instead of one kooky owner, at Pacifica and WBAI, there are many.
But the truth is, they are hemorrhaging money. Running WBAI, with the Manhattan studios and the stick on the Empire State Building is very, very expensive. At least with WFME, they do solve the problem of the high ESB rent. They may lose a bit of signal coverage, but, as with Family Radio, their dedicated listeners will seek them out elsewhere on the dial. However, unlike FR, they don't do AM. If they move, it's gotta be to a decent FM signal. And even then, they still have to agree on it, which will probably be the hard part.
I think it will happen eventually, though. If I ran Pacifica, and Cumulus offered $30 million, the 94.7 FM frequency and engineering assistance to modernize it, I'd take that deal without hesitation. That's stupid-proof!