I believe the picture was taken by the French Navy or Air Force, which rescued them in Polynesia. It comes from the newspaper article about them and the sinking, here http://justfixit.uniontrib.com/uniontrib/20080713/news_1c13sailm.html and shows them "camped" on the reef, awaiting rescue while the boat lies in ruins.

Their powerful and powerfully built catamaran was quite shredded on the reef it hit (and a somewhat unrelated part of the tragedy is that the husband lost his leg when the mast toppled over on his leg). They spent a good long time stranded on the reef on their increasingly water-filled boat as it pounded on the reef in the seas.

Again, my point is most certainly not to imply that metal is an infallible or ideal building material. It is just that it is a strong material that can resist severe abrasion (grounding on a reef) or impact (from another ship, whales, etc.). The high-tech Kevlar hulls of the Lagoon destructed surprisingly quickly.

Sometimes luck is simply not with one. For those times, one hopes that the integrity of one's vessel will protect oneself, be it from a grounding, knockdown, etc.