It's completely bizarre. I guess podcasts are a form of talk radio, but tying them to some ancient radio technology that anyone under the age of 18 will have never touched is mental. They're even called podcasts: they arose because of the popularity of the iPod! Insane.
Apple really need to sort their designers out. I wish we could somehow have Microsoft's new Metro design aesthetics on Mac OS X and iOS, then I could have the best apps and OS design, and the best UI to use with them.