The end-to-end systems Missy is describing here do exist, but none of the major AV developers are using them in current vehicles. What's concerning here is that Missy Cummings is someone who should be an expert here. She directs the Autonomy lab at Duke and served as a senior safety advisor to NHTSA on this topic, among others. She's been publishing on this topic for years, so it's hard to believe she hasn't read read any of the architecture papers, or looked at the numerous talks on the subject, or even just had a conversation with an engineer.