I've seen dozens of accidents where the driver claimed he "wasn't doing anything" and the motorcycle "inexplicably" crashed into them. Like this video made by an acquaintance. The driver tried to claim he stopped normally and had no idea why the motorcycle crashed into him.
My accident last year, where a driver pulled out of 10mph traffic into the 50 mph carpool lane - without using her turn signal. I literally had the bike on its front wheel, locked up, when I slid into her. She claimed no idea how she could be at fault for the accident. Thankfully I had several witnesses, and I was able to tell my side of the story. Leigh Ann obviously had no such option.
Leigh Ann is fierce and competitive, but on the bike she's always ridden stable and safe. She's also been riding for many, many, many years and she's not stupid. Someone isn't telling the truth. Unfortunately we'll never know.