The driver is at fault, obviously. BUT.... I have almost done that by thinking I pressed the button and missed it. I have since always pressed the close all button instead just to be safe. I know you shouldn't pull away until the doors are closed fully but I admit I have started rolling on occasion when the doors were close to 80% closed.
I am sure she heard the beep for the passenger door closing and thought both doors were closing. Feel so bad for this person. The head on the steering wheel says it all. Totally defeated.