Apple has a porn problem, and it's about to get worse

Why is Apple so afraid of pornography, anyway? I could understand wanting to avoid bad publicity in the early days of the app store; but now there's a competing platform overflowing with porn apps (at least I'm assuming that's the case with Android) and nobody in the media seems to complain about it, so maybe their fears were overblown.

Or should we assume that the same media that are completely uninterested in porn apps on Android would drum up a moral panic as soon as they could put "Apple" in the headlines instead? (Well, yes, obviously. But still.)