You didn't make a point. App telemetry is absolutely benign compared to the kind of invasive ad tracking that Facebook participates in. There's no shortage of horror stories of poorly implemented Facebook Pixel integrations passing sensitive user data that marketers then use to create custom ad campaigns.

Most recent examples that come to mind:

https://www.extremetech.com/internet/341111-tax-filing-websi...

https://gizmodo.com/sat-college-board-tells-facebook-tiktok-...

https://www.theguardian.com/society/2023/may/27/nhs-data-bre...

https://themarkup.org/pixel-hunt/2022/12/13/out-of-control-d...

It can't be done locally since Apple needs the ability to revoke certificates at will.