The experience can still be refined and integrated, without having closed systems for something as simple as sharing a file to another phone. Why would you be against adding more value to your device?
Maintaining backwards compatibility isn’t easy, and cross compatibility just adds more complexity.
The good and the bad of Apple not having the best backwards compatibility is they don’t have to waste time on that. They can do what they do well and make the experience as smooth and seamless as possible. And most importantly move quickly.
I mean just look at windows. Windows 11 has gotten so much shit because they’re trying to change so many things, but they legitimately just can’t. Or on Linux look at its backwards compatibility. That shits a nightmare. Things like flat pack should fix it. But it only fixes it if everything is on flat pack.
All the money in the world won’t make everyone else’s devs fix (or even just update) their shit.