Interesting read. I can totally believe that most cases are due to human error, after all the human neuromuscular system is controlled by a very sophisticated computer and is not immune to defects and quirks. I have experienced a moment when I was driving and wanted to accelerate and my brain was confused and hesitated as to which pedal I should press.
Very scary, I assume early signs of Alzheimer or something
What the article does not touch on is why one manufacture is more prone to this than another.
Maybe folks who choose Audi or Toyota, have a bad set of neurotransmitters in the first place...