>Just to make it clearer, the removal of Facebook in the accounts was not about Facebook alone (though it may have been the cause for the decision). Integrations with Twitter, Vimeo, etc., were also removed together.
That one has more to do with Apple releasing frameworks that allowed any of the internet services to tie into iOS themselves.
For instance, share extensions:
>Share extensions give users a convenient way to share content with other entities, such as social sharing websites or upload services.
https://developer.apple.com/library/archive/documentation/Ge...
Apple no longer needed to pick winners and add integration for them into the OS by hand.
>Facebook’s enterprise certificate was revoked because it violated Apple’s policy by using it to distribute applications to users who’re not “internal” and not employees/contractors. That the app in question was also sleazy (as Facebook usually seems to be) was a coincidence in this case. But it’s also true that that app wouldn’t have passed the App Store review process had it been submitted there.
Facebook's spyware in a VPN's clothing had already been kicked off of the App Store last year.
>Onavo, which Facebook bought back in 2013, does two things. As far as regular consumers are concerned, Onavo comports itself like a VPN, offering to “keep you and your data safe” and “blocking potentially harmful websites and securing your personal information.”
But Onavo’s real utility is pumping a ton of app usage data to its parent company
https://techcrunch.com/2018/08/22/apple-facebook-onavo/