Bill, you continually get into these kinds of arguments here and I just don't understand it. You pick a tiny inconsequential hill to die on, while the battle is actually in the next valley.
Yes, it looks like you're right, the wheel moved backwards by an inch or two. Who cares? The same thing often happens when I stop at a light and put a foot down, which might be exactly what happened here. It's not like the rider physically rode backward into the car! Clearly the car was waaaay to close and the collision was the driver's fault. Why argue so hard about something inconsequential? Who cares?
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1964 JRJ (Bob Jackson), 1973 Wes Mason, 1974 Raleigh Gran Sport, 1986 Schwinn High Sierra, 2000ish Colian (Colin Laing), 2011 Dick Chafe, 2013 Velo Orange Pass Hunter