User blog comment:JAlbor/Assassin's Creed: Black Flag Q&A Opportunity/@comment-4999424-20130829135751/@comment-6517-20130831165245

It was probably removed because the vast majority of fans who played the game would not have known what the hell he was babbling on about. (That is, they have never read The Fall.)

Anon: No, it was deleted and is thus, not canon.