I would agree that EMS flying is risky, and only surpassed by flight training itself, as can be seen by looking at accident stats from a few years back (http://helicopterflight.net/2009.htm).

Your reasoning that the most demanding flying should be done by the most seasoned pilots applies equally to flight training as well. In fact Bruce Landsberg did an excellent piece on how the current “pyramid of flying” should be stood on its head, whereby low-time pilots apprentice with seasoned pilots, then move to captainship, and eventually into the most demanding of flying: training others. I would concur with this reasoning, but alas, the rest of the industry as a whole for some reason does not.

Either way, more flight EXPERIENCE, and not simply more flight HOURS, seems to be the shared solution. By increasing the amount of training pilots receive over the course of their careers, there is more likelihood they will be prepared to handle tougher flight situations, and exercise more seasoned judgement to avoid pilot-created dangerous situations.