Electronics to the rescue - NOT
I agree with PA sound man.
The only problem is that the people who design to electronics need to have flying experience to foresee the mistakes that can be made and the consequences of them. As a teacher of computer engineering, I frequently come across failures caused by a simple lack of "what if" foresight on the part of the designer. One example I use is the MK Airlines 747 cargo crash at Halifax NS, where the weight and balance program was found to have allowed the operator to take off from an intermediate stop with the same gross weight after taking on 100,000 pounds of seafood in water!
Obviously the designer could not know the change in weight and balance in advance, but why allow the previous value to be used at all?
Only when we include reading failure reports in educating engineers will we develope the culture to get ahead of the curve on correcting mistakes.