The issue is here is not the actual accident and who's at fault,
Oh, I quite agree. I was simply responding to this:
IMO the Sheriff in Arizona was much too quick to say that it was NOT Uber's fault.
What you and I are interested in is the background as to why
the tech in play did not (as it appears) act at all.
This is, by far, the most important aspect of this whole incident and is key to the refinement of AV technology.
There's going to be some name-calling and finger-pointing coming out of all this, but that's just butt-covering crap that nobody really wants to get caught up in. In 5 years' time, this incident will be a memory - but the tech will have evolved.