Facebook knew about the Kogan/CA transfer in 2015 and failed to respond adequately, instead they relied largely on deletion assurances rather than immediately auditing, and users weren't informed until 2018.
But more, CA was created as consequence and a way to profit out of the 2012 Six4Three scandal, after Mark Zuckerberg personally designed/approved the permissive data-sharing ecosystem specifically for these use cases (as several internal mails show).
But more, CA was created as consequence and a way to profit out of the 2012 Six4Three scandal, after Mark Zuckerberg personally designed/approved the permissive data-sharing ecosystem specifically for these use cases (as several internal mails show).