It may seem intentional. I think that Apple only cares about integrating Apple products. This means they launch features which competitors cannot participate in

It may seem intentional. I think that Apple only cares about integrating Apple products. This means they launch features which competitors cannot participate in. Can you blame them? Enabling third parties to act as 1st class citizens means big sacrifices in UX. Apple believes that great UX is more important than interoperability. Seems like there's a large enough market that agrees for them to meet their business goals - because at the end of the day that's what all of this is about.