What is the requirement for "safety" if it's not "x flights without loss or incident"?
I'm with Tourist, frankly if you don't like the odds, or don't want to accept responsibility for authourising flights, then resign. The system we have is good enough, and I think that should include a truly independent MAA, but the MAA have to accept we'll overrule them on occasion.
Whilst every death in service is a tragic incident for the families and friends involved, generally we don't send people on Op CERTAIN DEATH. Amazingly, I tend to trust those in positions of authority, perhaps that's why I continue to serve.