Not at all.
I passed no judgment on the book that you love. I'm only asking that you not dismiss the book that you hate.
The characters are not the data, neither are the facts presented. The way that the facts are presented, the information flow, and the setting, circumstances, and personality are far more important to understanding the author.
I'm not surprised in the least that most of what he's writing is bullshit, but that doesn't mean it isn't full of information.
EDIT: Ultimately, I guess I'm saying that how you say something is more important than what you're saying. And he gives a pretty clear picture of who he is and where he came from even if the details got warped.