I don't like the article.
From a pop culture perspective self defense is a lose / lose... When you read those stories about people that defended themselves, if they cried and were deeply effected by what they did, people say what is the point of defense? Why should you risk it?
If you don't show much feeling on the matter, then you are a killer, you liked it, et cetera.
Obviously this paper picked 4 people that were having problems out of 25... The quoted and listed material might not be as accurate as it seems, the author is trying to produce a certain feeling with this piece.... just remember that.