You don't think who the data is shared with, whether or not you know or consent to it, and how it is propagated is a significant factor in privacy concerns?
Of course that's a significant factor, but that wasn't my point. I care if Apple Music and Apple TV aggregate my data just as much as if Spotify and Netflix do it.
This isn't anything new, we've known that Apple does this for years. If data sharing is within one umbrella corporation it's technically easier to subpeona and investigate, but that also means they have that much larger of a pile of cash to defend themselves with.
Consider another aggregious Apple policy, mobile browsers. They have had a much more oppressive browser policy than Microsoft ever did and they have done this openly since iOS 2 when the app store first launched. They've never been held accountable though - they get away with it even though Gates was dragged in front of Congress multiple times for simply shipping his OS with a pre-installed browser. Why? And if that obvious issue goes unpunished why should I expect anything better with regards to their data collection practices, simply because one parent Corp is owning all the data?
That’s exactly the point. We can hold Apple accountable. That’s what’s happening with these investigations of what data they are holding and how it’s used. If the data was shared far and wide that would be difficult or even impossible.