https://cryptobriefing.com/us-grants-craig-wright-copyright-...
https://coingeek.com/bitcoin-creator-craig-s-wright-satoshi-...
That explains the temporal issue. Then, for the connection, I remember a lot of people on the internet reacted negatively on that news given that they don't agree that he should have ownership for that document as he never proved to be satoshi. I could see Apple or an employee inject that document in a way to "challenge" or "protest".
A more objective viewpoint is directly available from the US copyright office at https://www.copyright.gov/press-media-info/press-updates.htm... - see the entry with the title "May 22, 2019: Questions about Certain Bitcoin Registrations".
Basically he registered a copyright, but this does not mean that he "got" the copyright, as the copyright office does not verify authorship and as it's possible for multiple adverse claims to exist.