"I guess that the car thought the pedestrian was another car in front of us?”
Is supposition of the driver, not Tesla's explanation of what the car detected. They just confirmed the incident from the logs, not the reason why the car hit the brakes afaics.
"Machine does what it is supposed to" may not be news (but it is good publicity) but there seems to be almost a thought that "Car avoids hitting pedestrian" is a bad thing for it to have done in some of the previous comments.