But if they were… Is it possible a worse (less-safe) self-driving car would have made it to market?

The purpose of the testing was to make sure that good products made it to the market. Events like these which are human error have created bad press and have set the concept back by years. And these are not years of research, no. These are years in which the projects have been put on the back burner and we're getting small increments like lane assist which are bad (as in poor quality) most of the time and give users the false feeling that they have a self driving car.

I think fatalities from self-driving cars are going to happen regardless, whether during or after the testing process, and I also think that’s horrible…

I don't think that's the correct way to look at it. Accidents will happen. It is impossible to prevent all of them. But the total number of fatalities would go down dramatically if self driving cars would be more present on the roads and that is a huge win.

42,795 people died in motor vehicle traffic crashes in US alone in 2022. I think that even with the current technology, this number would still be reduced by half and that is a huge win.