is evidently describing fanon. A lot of it was interesting and often enough more so than later "official" canon. Often enough it often made a lot more sense than what came later from TBTB. Some good stuff came out of fanon and even made it into print such as some of the earliest novels. James Blish's references to the Earth/Romulan war in his adaptation of "Balance Of Terror" became part of fanon which in turn became part of Diane Duanes's The Romulan Way
and Diane Carey's Final Frontier.
Judith and Garfield Reeves-Steven's Federation
is a far better take on Zefram Cochrane than the nonsense of TNG's FC. And, of course, there's John M. Ford's The Final Reflection
which is a great bit of Klingon backstory more interesting than what TNG gave us.
Fanon did predate FJ which in turn encouraged even more fanon. I didn't always agree with some of it, but it could be fascinating.