All this speculation and personal opinons and yet nobody has posted any documentation
Actually folks have pointed you in the right direction many times here.
The point is that the incidents are the direct cause of either poor gun handling, lack of training, mechanical problems with the gun, improper equipment, etc. and not the fault of the gun being single action.
It comes down to that. You can overthink it and overtalk it, but in the end it comes back to that.