This suggests that 'sudden acceleration' is biased towards old people, and we know that operator error of the wrong-pedal type is as well. It doesn't suggest that only cases involving old people could be operator error.
Maybe a bunch of these cases are just the ambient stupidity that we've always had. That doesn't mean there's nothing to the story.
I've listened to the full 911 tape recording, and none of it adds up... he doesn't sound scared, he doesn't try to put it into neutral, he doesn't try to turn it off (he claims he was afraid the car might flip), but he does claim he tried to pry up the gas pedal (which is an essentially impossible physical move, to do with your hand while driving).
Not to mention that he has a ridiculously shady past (bankruptcy, $700k of debt, runs an adult website, entire kitchen of his house was stolen during foreclosure, former business partner accuses him of theft)
Honestly... if you're going to cite him as an example of anything, he seems like proof that a lot of these incidents are pretty obviously frauds.
I frequently seeing older drivers failing to signal and many other basic errors expected from an inexperienced driver, so why wouldn't the odd driver catch the gas instead of the break, maybe cause their seat got rearranged or whatever.
A young driver having this problem will be suspected of operator error, the first assumption for an older driver should be operator error. A dual-standard creates errors.