"slightly higher?"
That's hardly a reason for Indie to bail on an established format it's been growing for years, because some other station has "slightly" higher cume.
And cloning KFOG is a bad idea. LA isn't SF, and KFOG's version of AAA is actually somewhat blander than The Sound's programming. Those who complain about the amount of classic rock on the Sound would be quite unhappy with KFOG. More Cars, Supertramp, and such acts, and less current and recurrent AAA. And KFOG still plays their fair share of those Goo Goo Dolls records you've been burnt out on by the Hot AC stations too.
I respect KFOG's jocks and heritage, but it's not exactly a model of forward thinking in AAA.