I agree even fully alert driver would have hit this poor person no if or but about it they couldn't have avoided in 2sec time frame at night time how ever that may been diff story if it had been day time.
I blame it on poor lady not only was she jay walking in first place but fact that the bike had no lights of any kind not even any night time reflectors
Humans don't like killing other humans, typically. I would expect a human driver to swerve right if they had the reflexes. I get the feeling the computer decided the occupant was more important and carried on.