Taken out of context. Way out of context. Listen to everything he said and not the edited clip by CNN. He was saying we all made driving mistakes driving in foreign countries.
It would have been more appropriate to say nothing at all. If asked, he could have simply offered his condolences to the family.
I've driven in Germany many times and have not made any driving mistakes. I bet there are plenty of folks who drive in foreign countries without making driving mistakes and even fewer folks whose driving mistakes resulted in someone's death.