Sure, I'm not saying there isn't an issue here. Apple is in the wrong and so are the litigators in the patent suit.
My point is that they shouldn't be in fear of their daughter losing her voice any time soon. Are other kids going to lose by not having this app available in the future? Yes. Are they prevented from getting any software updates to this app? Yes. Will their ipad eventually die? Yes. Should they be afraid of Apple remotely removing their app from their device or updating the OS so that the app no longer works? No, they shouldn't be.