We can blame the lighting issue on NHTSA and the fact they haven't allowed Volvo (or any other manufacturer) to use their active high beams. Had they been in use, their wouldn't have been an unlit area to the left front of the car since the active high beam would light up that area until an oncoming car came and the beam adapted around the oncoming car. Instead the antiquated headlight laws still have vehicles dipping their beams down and to right so they don't dazzle oncoming traffic. That's no longer an issue with the advanced lighting systems implemented in vehicles but they still haven't been approved for use in the US.
It still doesn't excuse where this woman decided to cross the street, but it certainly could have illuminated her earlier.
There was no unlit area, it's just bad video displayed in the clip. Those streets are very well lit at night.