It's true that you can boil it down a lot. In fact, the book even has a checklist checklist that distills down the advice to one page. However it was overall a very quick read and the extra discussion really did further my understanding of the underlying principles that make a checklist good. I'd recommend reading the whole thing so that you actually make a useful checklist instead of a cargo-cult copy of an aviation checklist.
It's true that you can boil it down a lot. In fact, the book even has a checklist checklist that distills down the advice to one page. However it was overall a very quick read and the extra discussion really did further my understanding of the underlying principles that make a checklist good. I'd recommend reading the whole thing so that you actually make a useful checklist instead of a cargo-cult copy of an aviation checklist.