To answer Rod1s point look at the features of the Porsche powered Mooney. One of the many reasons it did not do well was the complete duplication of the electrical system. That was done to meet the FAR requirements if there is no vacuum system. So multiple alternators, buses, batteries and flight instruments. A lot of weight to cart around and obviously a complex aircraft for your average aero engineer to maintain and understand.
So no, the average aircraft's safety is not much improved by going electric. Going solid state electronic - probably but we are still along way from that for certified equipment. (Corrected to add for certified equipment that people who work for wages can afford!)