I love this document as well for very similar reasons. It's interesting how attached people become to the ritual of doing things instead of thinking about why they are doing it.

In my experience it seems like a ton of things that people want to do with agile is get to skip the writing and design work that has to happen to make deep technical projects happen. There is a really strong desire to just start implementing and then be able to refactor to working code. Of course there is always pressure to deliver faster so the refactor only ever gets half done and then there is an architectural mess.