Well, that's not self-esteem. A person who truly knows his worth is also aware of his failings. These failings, however, don't cause a person of high self-esteem to hate himself; rather, he succeeds in spite of them and works to overcome them because he knows he can.
It is to the "self-esteem movement", which is the whole point.
You're too hung up on word choice, you're not paying attention to the actual mental states being discussed (which are made clear enough from the context of the article and subsequent discussions, even if the single term "self-esteem" in isolation may mean different things to different people).
A false sense of self worth (and the drive to promote it) *is* what's being discussed in the article. Don't let the fact that you may use the same word to describe something else confuse you. No one's denouncing true self-confidence.
It's like posting an article discussing the "gay lifestyle" and clearly talking about homosexuality, and then having someone keep responding, "but there's nothing wrong with being joyful, this is silly".
Ghost of Oedipus.