> It’s an accident that could also happen to an inattentive human driver. (Ask me how I know :( )

Anything "could" happen, but it would take an inordinately inattentive driver to be this bad.

They had 7-8 seconds of staring and talking about the debris before hitting it (or perhaps more, the video starts the moment the guy says "we got eh, a something", but possibly he saw it some instants before that).

So a person would need to be pretty much passed out to not see something with so much time to react.