Yeah, I 100% agree. For small projects most of the principles don’t matter as much because the complexity is just not there. For big projects you actually need to take a big ass tech debt loan to actually get things done on time and on budget.
The testing aspect I’m not as sold on either. I enjoy tests sometimes but they also come with increased development and maintenance cost. He emphasises unit tests but I’ve found that a few integration tests that use API calls to simulate a use case gets you most of the way there.
That being said I’ve seen raw HTML email string with hardcoded values in a 2000 line method that relies heavily on if statements. That one method probably breaks around 10 of his rules and I absolutely hate it. Very hard to add features to if you can imagine and incredibly noisy and hard to debug. Shouldn’t be like that but it is. I wouldn’t apply all of Bob’s rules but I would refactor it into a service with clear boundaries so I don’t have to deal with the function having “local globals” if you know what I’m getting at.