As far as I know, Apple has yet to sue anyone for jailbreaking an iPhone, or for publishing information on how to do so. So it's not correct to say you don't have a choice of distribution channels.

I'm mostly playing devil's advocate here, because I agree that as long as a device is marketed as a general-purpose computing platform, it needs to be open to succeed in the long term. Still, Apple is under no obligation to distribute anything and everything that people throw at them.