This is an unfortunate, but sadly inevitable, occurrence.
No one who was has seriously thought about autonomous vehicles has ever pretended that they will be 100% perfect 100% of the time. In order to improve on the current situation they only need to be better than most human drivers, most of the time. Sadly, this is not hard.
A lot more needs to be understood about this incident before we can make a judgement about it. For example - there was a safety driver on board who did not react in time. Did they not see the pedestrian? Did they think the car would react for them? Was there no time to react? How did the pedestrian enter the road? Was the pedestrian visible to the car or driver in time for either to take action? And so on.
I would be surprised if the car didn't
record the incident, so thankfully all these questions will probably be answered. That means that if the car was at fault, the fault can be corrected.
And here is the nice thing about autonomous vehicles - once one of them makes an avoidable mistake, you can roll out the fix to every single vehicle
so that none of them make the same mistake again. In contrast, humans seem quite happy to make the same mistakes over and over again. Below, for your amusement, is a compilation of people doing the same stupid thing over and over again.