Given how many things we do that make us unsafe drivers (being distracted by music/passengers/anger/other, driving while tired or otherwise inattentive, ...) I don't see it being long before we can claim automated cars are as safe as those driven by humans, especially in some conditions. I can't say we are there yet, but things are getting pretty good.
I don't understand why people call it unsafe because there are more than zero accidents. By the same measure humans should not be allowed to drive either. Even when people have slightly more reasonable expectations they compare the automation to the best drivers, not any average or bad driver.
Perhaps there are conditions where the automated systems are still going to be worse than the average human, perhaps night conditions like this are included in that. The solution there is to make the automation refuse to continue (refuse to start if not yet en-route, ask the user to take over if so, find a safe place to park if the user can't or doesn't take over when requested) in conditions where that might be an issue. This still allows automation in the majority of driving conditions.