What's your reaction to the Dutch bobsledder who bowed out of the Olympics?

Here’s the story: http://www.cnn.com/2010/SPORT/02/25/olympics.bobsled.driver.quits/index.html?hpt=C1

I find this a very interesting story in that you rarely read of an Olympic athlete losing his or her nerve. In my mind, it takes a lot of courage to say no at this point. Another aspect of it is that his bowing out means that his whole team has to withdraw. Is he being unfair to his team? Is he courageous? A coward? How do you get so far and then give up? Your thoughts?