A scratch on a prop blade commonly causes a chopper crash..?
That’s quite a stretch.
I agree with the rest of what you wrote, though.
The crash was next to the intersections of Cormorant Circle and Pelican Court.
So, short of the clearing astride the bushy coastal area.
So it would have to be either a legit emergency or sabotage.
The place doesn't really suggest suicide.
I am not a floppper pilot and know little about them, but:
Any prop under load flexes. Any pilot who does not have a death wish will check his prop or props very carefully before every flight unless he has operated only on clean surfaces free of gravel.
Even then, the first flight of every day demands an inspection.
Reason being that when the prop flexes under load, an excessive amount of flex will go to the scratched or nicked point, causing the prop to flex excessively at that point. Catastrophic failure will occur within a given amount of flight time according to depth of length of damage.
There are many stories of light twins and single engine aircraft that had the engines jerked off the mounts.
I have been retired for 20 years but I have personally seen two engines jerked off the engine mounts.
I have been told that floppers are even more sensitive to this problem, but I say again I have no personal experience with them. I swore that I would never ever ride in one and so far I have made good on that.
Some years ago Marine helicopters were crashing. ...eventually found to be caused by vapor from nail polish causing the blades to delaminate.