maybe so, but there is a certain level of self-discipline and privilege needed to be able to study just from books. Lots of people on CS and other courses want friendly exposure to new ideas, not a recommendation of a list of text books
A person who learns well from books in a solitary setting is at a huge advantage compared to someone who needs a social-kinesthetic style.
[0] https://www.theatlantic.com/science/archive/2018/04/the-myth...
[1] https://www.apa.org/news/press/releases/2019/05/learning-sty...