As the author, I agree! I did originally have space for an example near the start, but I ended up taking it out because I couldn't think of a good example that wasn't deeply contrived, and I'm currently on parental leave so I can't easily check the codebases I work on regularly for examples that I've run into there.

I probably wouldn't have thought to include the "after" example as well, though, so thanks for that feedback. In my next post I'll try and include more examples.