Then again, the article does also point out that it's not all roses and that getting involved in extreme circumstances like these takes a psychological toll, which I think is a very valuable thing to point out. Too often, we hear about the spectacular actions of folks, but never the long-term follow-up. Many of us choose to get training for first aid, CERT, firearms, etc. thinking that we can help others, but don't necessarily get taught about what happens after it's all over.
Good point. I've never been in anything similar I should be catious about making blatant statements about life and death situations. The next best thing is to listen to the advice of those that do go into harm's way. I highly recommend "On Combat" by Dave Grossman. It deals specifically with what happens before, during and after highly violent and maximum stressful situations.
Amazon link If you know the range and variations of reactions to expect you can make plans to deal with them.