Perhaps a better article here: https://www.carscoops.com/2023/07/feds-assess-allegations-th...
A very detailed paper by the fellow mentioned in that article here: https://www.autoevolution.com/pdf/news_attachements/breaking...
*edit: looks like this may have been debunked
This seems easily explainable by someone pressing on the "brake" (actually accelerator) slowly, then panicked slamming on the "brake". Not sure what'd be strange about that at all.
Not saying there isn't any there there, but seems like it could be explained pretty easily.