It's all a matter of economics, really. Now, keeping in mind I didn't read the article, only the most largest of cities generally have classical music radio stations. There just aren't enough listeners to support them. There was one in Kansas City (KXTR) which was an AM station, and they had one DJ, Patrick Neese, who would do his thing from in the morning til about 10:00 or so. After that, they contracted out to some global Classical station which played complete and utter garbage from then on. And by complete and utter garbage, I mean nothing more recent than about 1820, and by a bunch of people no one, including myself (owning over 500 classical CDs) had ever heard of. Just really obscure, awful baroque music. I think they prided themselves on finding the absolute most boring, common denominator stuff they could possible find.
It's why one of these days I'm going to get Satellite radio. So, I don't have to deal with the lack of good radio choices anymore.
Radio will die, but it will likely go down kicking and screaming.