He was asked about this a long time ago. Said that he wrote it but there was a big stink about the assistance of AI. Some chess playing dork was dateless for the 42nd consecutive Saturday night, and ran the the statement through an AI assistance detector that spit out that 85-90% (Going from memory, but those numbers are damn close) of the letter was AI generated.
Did he write it, didn’t he write it, did someone proof read it, or hold his hand through the entire process - I have no idea. The joke around the campus was that he didn’t have human assistance due to this very line of questioning. They would have kept the meaning but modified the word choice to make it less perfect.
I hate these apologies anyway. They are always so disingenuous. Of course you’re sorry, YOU GOT CAUGHT!