That's a lot of qualifiers. And replace "humans" with "cameras" and I'm reminded that despite their well-intentioned efforts Volvo has failed there already.
It really isn't though. It's how you do something correctly. Drill into the details of just about any system and you'll see there's a lot of assumptions based on the layers above and below.
A good safety system requires multiple of these failures to occur together to become unacceptable in risk.
