This video shows that it is a brain freeze, not a crash at all. He was completely stopped and standing up on his left foot before he forgot to take his right foot out of the toe clip. The first videos I saw look like he was tumbling all over the place. Could that video have been from his own bike?
This...
People suffering from stage 4 dementia should be riding a bike with training wheels not one with toe clips on the pedals. You'd think Faux Dr. Jill would know this.