Nick,
The 76 has a good safety record, but it when it is involved in an accident it is usually catastrophic, seen one last year that just had a hard landing, and it was a mess.
The old 61 has shed blades[or part of ], crashed on its side [T/R Buzz ] MGB failures and the crews and pax walked away from it.
With the 61N been amphibious, the hull is very strong so that is probably the reason for its great survivability.
Wonder will any of the manufacturers come up with a design for smaller helicopters based on the F1 racing cars were the cockpit is incredibly strong to protect the driver, you see a car go into the barriers at 200mph, the car is totalled but the drivers area is intact.
Cheers,
TC