Yeah, one of the problems with being too abstract is that it's open to many interpretations, most of them incorrect. Also, a few pages or paragraphs won't stick; I need examples. I'm not a computer; installing new ideas in my brain isn't like installing apps. My brain prefers storytelling to better grasp ideas and make them its own.
Agreed, but many self-help books either waste their time by making dubious claims from half-sourced research, using useless anecdotes, or repeating the problem in different ways. The best ones actually tell stories of different ways of using its method to solve a variety of problems.
Absolutely, that contextualization can be so useful even if some deem it fluffy. Also no one is obligated to read every single word of a book, if you don't want the anecdotes and case studies, you can skip them! They are helpful for the rest of us.