So reading this article [0], it seems as though both parties are evaluated for their actions and blame is assigned proportionally. So while the women jaywalking would probably get the bulk of the blame for jaywalking, the driver/uber might also get some due to software error/driver inattention.

My guess for why the cops are not really going after uber is because the women was reportedly homeless so she does not have any family to fight for her case.

[0]: http://www.alllaw.com/articles/nolo/auto-accident/pedestrian...