I liked your article, you make a good point.
When David Allen says that this or that works or doesn't work, it's not really true because it depends. It might not work in some cases but work in others.
I feel like his newsletters are basically just repeating the same thing over and over so I don't read them.
You know contexts, projects, next actions, etc, everything is just information. It all comes down what is useful information to write down and what is not. Sometimes priorities are useful information so why not write it down? No real reason to.
I can make a similar case that contexts don't work or next actions don't work but the truth is sometimes they're useful information and sometimes they're not. After using gtd for a while I know what is useful to me and what isn't. I break gtd rules all the time myself. I do whatever I want with it to make it work better for me personally.