And, as ever, the injured parties (or relatives of) concede no portion of responsibility for the deceased being 138Kgs with a litany of medical problems and going out hunting in that condition.
Frankly, winching him out was the only option since the terrain doesn't sound that good and carrying 138kgs cross country on a stretcher would have been more hazardous to the rescuers.
They could, of course, have chosen not to winch him and let nature take its course............and then they would have been sued for not rescuing him.