Do you think that doing so would make you a better driver?
No but from someone who's hand cranked an old John Deere, I can tell you it makes you a better mechanic to keep it tuned for easier starting LOL
Frankly, I make images the same way I did on film.
Kind of the direction the author of the book is taking - create more in the camera and less in the computer.
Though not a professional, I can see the benefits that the digital age has brought to those who earn their living this way, and don't mean to imply that's it's wrong to use new technology as it becomes available. I'm sure there are many well versed in the technical aspects of all things digital to whom the whole process seems as simple as the film of yesterday, and no doubt some of the work done today wouldn't have been possible 30 or 40 years ago. Today a CNC and robots can manufacture a complicated piece, a 3D printer can build something from a pile of powder, Google can drive a car, and a lot of people now rely on post processing to "fix" what should have already been completed in camera. Maybe it has to do with the photographer as an artist verses one who only records images, but that's a discussion for another thread.