IMHO, this is bad advice. It is like saying if you want to teach how to change oil in the car, teach the entire automotive engineering curriculum.

Introducing extreme complexity so early in the process turns off people; they give up easily and (falsely, in many cases) start believing that programming is not for them.

The first introduction should have enough fundamental programming concepts to enable the students to make something useful and tangible, by themselves. As the interests and the objectives grow, they can delve deeper into the domain.

I think with Khan Academy, Udacity and others, we are entering a new paradigm of "Just in time learning". Schools should focus on teaching smart learning techniques, critical thinking etc instead of cramming more and more topics in their curriculums.