Sadly it is the sort of course that should be mandatory periodic training for crews and management but unless the CAA legislates for it that won't happen. The military have a tri service Flight Safety setup that runs regular courses for all levels of experience (and not just for aircrew) and includes training for senior officers who make the big decisions just like company management.
Any course that raises awareness of Flight Safety issues and gets people thinking about how easy it is to have an accident but also how easy it is to prevent one, has got to be worthwhile.