The exposure time and the dynamic range of the sensor affects the visibility of the person in that video - it is very likely that a non-distracted human would have performed better.

The vehicle was equipped with both radar and lidar. The victim was detected as an unknown object six seconds prior to impact, and at 1.3 seconds prior to impact when the victim entered the road the system determined that emergency braking by the driver was required, however the (distracted) driver was not alerted of this.