We all have to start somewhere, from ‘getting our eye in’ on the planets, discerning faint detail in comets and galaxies, getting fine resolution on double stars, and making judgements on intermediate magnitudes compared with reference stars for the variables. So not surprisingly digital users also have to start somewhere.
Whilst I’ve not read the book either, it seems a wider readership is served by starting with basics (which experienced, almost professional, observers can skip or disagree with), though to some pretty detailed material in an appropriate context for advanced amateurs.
It would be interesting, for instance, to know about Damian Peach’s first/early efforts in order to attain Hubble quality images nowadays. Would he have been overawed by talk of calibrations?