Despite the Uber-released video being misleadingly darkened, you can clearly see the victim was already in the road when she was hit, she did not "leap in front" of the car. The car made no attempt to avoid a collision, she was simply mowed down.
Yes. And as a pedestrian, I would expect cars to slow down somewhat in advance when I would cross the street like that. That didn't even happen. Even if the car would brake in time, it would still be scary as hell compared to the same situation with real human drivers.