Yes, if a pedestrian is crossing against the light in front of you, you slow down even if you don’t think you’ll hit them, even if they’re already past your lane. If the pedestrian stops on the street they are crossing against the light, you slow down, even if they aren’t in your path, especially if you are aware of the vehicles around you and know the pedestrian is in the path of another nearby vehicle. If you see the vehicle in the lane next to you speeding up when you’ve noticed the pedestrian is stopped in their lane of traffic, you slow down and maybe veer away if possible. If you see that the vehicle next to you has hit a pedestrian, you immediately hit the brakes rather than wait 2.4 seconds until you’ve determined you’re going to hit that pedestrian before you decide to hit your brakes.
Those are all things an alert human driver should be ready and able to do. I would expect a quality AV system to do them better than a human, but in this case, none of those things appeared to happen. This AV decided “pedestrian is out of my lane, continue accelerating!” Only stopping when the pedestrian was right in front of the vehicle.