Look at this picture. It is of  Sébastien Josse, the latest Vendee entry to bite the dust. Note that he is not wearing a life jacket and no tether. That amazing footage of Alex Thomson on Hugo Boss also showed that Alex didn’t bother to clip on and his deck was awash.
Sure seems irresponsible and more than a little dangerous. Brian Hancock addressed both of these issues here and here. Jump in the thread here.