I am not asking about whether it should happen, but what is typical for an automotive factory.
I wish I could answer questions about it but at this point it's been years and I've forgotten basically all the details. I will say though that there were suspicious gaps in Tesla's incident reports of months going by without the slightest incident, from the very beginning of I think April 2015 to the end of the calendar year.
You may dismiss it as biased, since it obviously is, but the methodology of the portions I worked on or saw was honest.