And just how exactly do you assess the relative risk between using a modern helicopter (either S/E or M/E) operated by experienced crews, to other forms of transport. Boat / road ambulance etc? Surely they all come to grief at one time or another. Statistics don't tell the whole story.
High Nr
You're correct about the accidents (not commenting on this current one) not being caused by engine failures ... however in some way were't the capabilities of the particular A/C exceeded for the particular task being undertaken? If so this then comes back to a systemic problem and you're right ... we must "improve the system". From appropriate use (tasking) of all assets to providing the appropriate equipment for the job.