I think the crux of good software design, is having a good feeling/intuition when to abstract and compose, and when to “inline” code as it’s used only once anyway (in which case “linear code” is IMHO often the better choice, since you’re staying close to the logic all the time without having to jump between files etc.).

I agree the examples of the google blog are bad, they don’t really show how to compose code nicely and in a logical way (whether that would be more data-oriented, imperative or OOP).