Yeah I heard it got mixed reviews, though I didn't read any cause I prefer to form my own opinion from reading it first.
I think the perspective through which Lowery analyses bitcoin is unique to the bitcoin space. I certainly got many insights about military tactics and security from reading it. Most of his described possible outcomes are hypothesed, so if you read it as a theory that's all they are.
But I understand people dont want bitcoin to be associated with war.