Even the greatest popsci book of all time, a brief history of time, is famously a tome almost no one ever reads fully[1]. Every popsci book I've taken up I can never finish because half of it would be repetitive BS and I'll come out of it not taking anymore takeaway points than what was in the article in Forbes promoting the book. The motivations for publishing popular science books by professors are probably to blame here, on top of the fundamental research ethics problems that plague academia nowadays.
1. https://www.washingtonpost.com/news/morning-mix/wp/2018/03/1...