I suspect Apple's policy is "we're going to turn a blind eye on this until it becomes public". If it leaks, we'll act.
I would not be surprised if the list of apps that a user has is not disclosed to Apple, and the only thing that is exchanged is Apple's "blacklist" of revoked certificates.
Apple still seem to be one of the very rare companies with this much power who even half-heartedly try. Not to defend Apple, of course, since they've done stuff that doesn't need to be defended.
I'm very curious to see how this plays out, though.