Those humans saw the debris. What happens next when a human is actively at the wheel is that the driver should look at all mirrors, decide whether to change lane or brake, execute. Or anything else that could lead to a movie like multiple car accident. Hitting the debris is the least dangerous line of conduct if there are cars all around. That looked like an empty road but who knows.
By the way, playing a lot of racing videogames is a great training for dealing with that sort of stuff, except maybe getting good at mirrors. I've been in a few dangerous situations and they were only the 10th thousand averted crash. Nothing to think, only reflexes.
I highly recommend people take a high performance/race driving course if they can. I did a single day one which involved high speed maneuverability trials designed to be useful in emergency scenarios (swerving, braking, hard turns) followed by a few laps around a racetrack.
It's one of the best ways to figure out what it feels like to drive at the limits of your car and how you and it react in a very safe and controlled environment.
By the way, playing a lot of racing videogames is a great training for dealing with that sort of stuff, except maybe getting good at mirrors. I've been in a few dangerous situations and they were only the 10th thousand averted crash. Nothing to think, only reflexes.