I guess emotional pain hurts more mentally than physical pain, as there's less understanding of it - if your leg hurts, you know why, and within reason you can work out when it will get better etc... Not quite the same with emotional pain.
Without wanting to dismiss the article (and admitedly I gave up reading it halfway through) you could quite easily argue that anything in life can kill you

Probably better to just not get sucked in by such articles.