So.. there's a driver in driverless cars. A fall guy that will take all the blame should the company needs to produce someone to be arrested, but don't otherwise have leverage to earn a decent living
Are you seriously pretending the driver doesn't have agency here? This accident was easily preventable by the safety driver, which makes the "fall guy" characterization misleading. Sure, maybe there was some risk of complacency, but what's the alternative? Should uber have gone full workplace surveillance and have a camera trained on the safety driver's face, to make sure she was paying attention?
And yes, if you make software that drives the car, release it into public traffic, and then your software runs someone over that would be plainly visible to a reasonable human driver (the misleading dashcam footage you release to make it seem way too dark [to a shitty dashcam sensor] notwithstanding) - you should absolutely bear responsibility! How is that even a question? You did that! Not whoever you put there as a "safety driver". We can adjudicate their responsibility separately, but it's certainly not 100%.
You're conveniently omitting the fact it's a self driving car prototype and that the safety driver is supposed to catch failures.