"Controversial" is a code word (think PC dog whistle) which means, "not PC, don't listen, OK to hate". Its PC usage has nothing to do with its dictionary meaning; you won't see it applied to a leftist, no matter how combative and irresponsible. But Rush Limbaugh? "Controversial" is practically his title of address in that world.
Chick-Fil-A probably has not done enough penance to expiate the guilt of having sent a couple bucks to the AFA (if that's who it was, I disremember). They might have to open on Sunday after all, and start serving tofu burgers or something.