This was a one off first-gen product that was sold almost 9 years ago. How long do you expect them to keep maintaining it? At least no one is attempting to build infrastructure on top of an Apple Watch—that can’t be said about google’s services.
Apple’s executives committed themselves to the lunacy of selling effectively disposable electronics housed inside an actual gold case. They knew exactly what they were doing and that decision is exemplar of their overall practice of building hardware that is impractical to maintain in the long run.