Apple provides telemetry services that strips the IP before providing it to the app owners. Routing like this requires trust (just as a VPN does), but it's feasible.
So many US universities running such nodes, without ever getting legal troubles. Such lucky boys
Distinguishing factors from your example include
1. PII is actually encoded and handled by computer systems, not the mere capability for that to occur.
2. PII is actually sent off site, not merely able to be sent off site.
3. It doesn't assert that the PII is collected, which could imply storage, it merely asserts that it is sent as my original post does. We don't know whether or not it is stored after being received and processed.
Why is it relevant whether they provide it to app owners directly? The issue people have is the information is logged now and abused later, in whatever form.
If the app owner can't obtain PII, I don't believe the app owner is spying.
Is Apple spying?
> Routing like this requires trust
It depends on if you trust them, and their privacy policy. If they're functioning as a PII stripping proxy, as they claim, then I would claim no, to the extent of what's technically possible. I would also claim that a trustworthy VPN is not spying on you. YOMV.