You might already know this because you seem to know a lot about him, but when I was researching the Lisa claim you brought up I found a CHM oral history with Dan'l Lewin (https://archive.computerhistory.org/resources/access/text/20...), where page 20 mentions that Cringely was married to Ellen Nold while she was working on the Lisa project. Maybe that's how he got some of his anecdotes about Apple in the early 80s. EDIT: Cringely's next Apple anecdote in the talk you linked was about AppleLink, and this photo has Nold listed as manager of support programs for AppleLink: https://www.gettyimages.com/detail/news-photo/ellen-nold-the...
I agree that his tendency to exaggerate his own past is unfortunate but doesn't outweigh all the great journalism he's done.