Unfortunately it is and will always be thus. Its the autopsy approach - where you wait for folk to die before you do anything. But in general you don't know there is a problem until after the accident. To address what you think is the problem in a knee-jerk way, is prone to wasted effort and lack of concentration on the real issues when they finally come out in a properly thought-out report, and every unnecessary change has it's own hazard to contribute.
OK so what is Bristows Target Zero doing? Waiting to react to accidents?