Completely unsurprised. Why would you make your product unavailable to a certain portion of your customers? Ultimately, if people want some particular content (I'm so, so sorry) in a particular format, they're going to go out and get it. The only choice left to you, the content owner, is whether they get it from you or from somebody else. I'm not saying that that's ok, but it's reality. Don't be King Canute.