The interesting thing about Brad Warner (author of said article) and generally Soto Zen (his practice) is that "Enlightenment" is really just a distraction and not important at all. It is not intended to be the point of zazen/meditation.
With all of the excitement I see online about SICP and Lisp/Scheme, do you (or anyone else) know why they are transitioning away from the book and Scheme?