The lessons learned if applied become a routine...and that alone will prevent some of these tragedies.
That is why training must be effective and retained....and not merely be a box checking exercise.
Policies wisely arrived at....must be composed with every time.
After all....Lives depend upon it.
But your point is very well taken....Helicopter Pilots have an amazing talent for killing themselves in the same old ways.....we are. not very innovative when it comes to that.