They will probably lose in arizona (In My Lawyerly Opinion) but Uber will settle it out anyway.
It's not only comparative negligence, you don't have to always yield. In fact, Arizona has a weird set of rules that would make this exact set of events a law school exam style question:
Arizona: Vehicles must yield the right-of-way to pedestrians within a crosswalk that are in the same half of the roadway as the vehicle or when a pedestrian is approaching closely enough from the opposite side of the roadway to constitute a danger. Pedestrians may not suddenly leave the curb and enter a crosswalk into the path of a moving vehicle that is so close the vehicle is unable to yield. Pedestrians must yield the right-of-way to vehicles when crossing outside of a marked crosswalk or an unmarked crosswalk at an intersection. Where traffic control devices are in operation, pedestrians may only cross between two adjacent intersections in a marked crosswalk.
One saving grace for any plaintiff is that in AZ you can recover 1% damages even if you are 99% at fault.
The wildcard here is that interior video. The safety driver was clearly not paying attention. Although the exterior video seems to exonerate her, everybody knows that even with no bright clothing and in between streetlights, a pedestrian rolling a bicycle wouldn't be that invisible.
On the other hand, that pedestrian was astonishingly oblivious, crossing a two-lane roadway with a 45mph speed limit and not even looking for oncoming traffic. If she did that every night for a couple of years, I think her odds of having at least a close call would approach 100%.
Arizona: Vehicles must yield the right-of-way to pedestrians within a crosswalk that are in the same half of the roadway as the vehicle or when a pedestrian is approaching closely enough from the opposite side of the roadway to constitute a danger. Pedestrians may not suddenly leave the curb and enter a crosswalk into the path of a moving vehicle that is so close the vehicle is unable to yield. Pedestrians must yield the right-of-way to vehicles when crossing outside of a marked crosswalk or an unmarked crosswalk at an intersection. Where traffic control devices are in operation, pedestrians may only cross between two adjacent intersections in a marked crosswalk.
One saving grace for any plaintiff is that in AZ you can recover 1% damages even if you are 99% at fault.