> It’s apple’s own private system and infrastructure and they’re within their rights to control content delivered using that system.
I dunno: to me, Apple's "rights" stop at their doorstep, and if they don't want their service to be accessible to third-party clients, they are more than welcome to just not build such a service (as we honestly don't have any reason to provide legal defense for this one specific business model).
We don't merely generally avoid extending rights over other people... usually we protect people from incursions into their rights by companies, whether by contractual or even by technological means: we have many laws and legal precedents designed to ensure interoperability, fair markets, and basic things such as "legal ownership" (see the right of first sale doctrine, for example).
When Beeper sues Apple (which I do hope is their next step), it is not at all obvious that Apple will get to keep doing what they are doing here... and, even without Beeper's involvement, we're already seeing government regulators and politicians rightfully poking around at the situation, ready to provide some clarification to the rules in order to prevent this kind of thing.