What's the story in the video with 'pulling at heartstrings' by featuring a blind person? The problem of a blind person getting a ride is obviously solved. But

What's the story in the video with 'pulling at heartstrings' by featuring a blind person? The problem of a blind person getting a ride is obviously solved. But more importantly it's an edge case of a need for a vehicle that is self driving. And actually I wonder whether someone who is blind actually would rather have a human driver in the car and feel safer generally that way. Seem to me almost like a strawman in a way. In other words 'if you feel that you have to help the handicapped you need to be onboard with self driving cars'.