What's baffling? It's not a matter of "owing" Apple any right. Apple already has the inherent right to control what and when they want to publicly reveal, and anyone who has signed an NDA with them has made a promise that they won't do it first.
Whether or not harm comes of it is kinda beside the point. The point is that if you've promised not to reveal information, you've promised not to reveal information. If you do so anyway, you're in the wrong.
If it's a whistleblower situation, breaking that promise can be justifiable, but leaks like this aren't that.
