If I'm imagining this scenario correctly, I've experienced it tons of times and never seen traffic slow down. It's a road with a median and a person attempting to cross the road has temporarily stopped in the median waiting for a break in traffic so they can cross. Maybe I've just lived in 2 crazy states, or maybe I'm not imagining this scenario correctly, but I can't recall ever having seen traffic slow down for this situation.
It's possible to believe that the sensors/AI failed (no braking) while also acknowledging that the vehicle/driver is not at fault for the death. I suspect that may ultimately be the case here.
Where have you lived? Here in DC you regularly have to slow down because tourists and homeless people will blithely jump into the street. Same thing in Philadelphia or New York.
You might also rest your foot on the brake in anticipation.
But neither attention nor anticipating controls is a concept that really exists in these autonomous system. They're "always ready". (yeah "attention" can exist in perception neural networks, but I am not sure that has much to do with keeping an eye out for a risky event)
It's possible to believe that the sensors/AI failed (no braking) while also acknowledging that the vehicle/driver is not at fault for the death. I suspect that may ultimately be the case here.