The state of CA is not a good example of safety evaluation. They require each model of gun to go through an expensive(IIRC, ~$25,000 per) "testing" process. A gun made in 5 different calibers and 5 different colors or finishes requires the manufacturer to pay 25 times the fee to be able to sell in CA. This process has little to do with safety. It's about income for the state and discouraging gun manufacturers from selling in their state.
Do car manufacturers need to have each color of their cars to be "safety tested" before they can be allowed to sell them? If a new color is introduced, is it inherently illegal to sell until it has gone through the testing process?
In fairness to your point, the 1911 design does lack some improvements that have been developed in the last 100 years. During that time, it was a standard sidearm of our military and used by law enforcement agencies. It may not be a perfect design, but it's clearly not inherently unsafe. The hypothetical situation you describe is due to unsafe handling practices.