I can see how the car could fail to see the rig since it sits high off the ground and might appear to be clear, especially when the trailer color is gray.
No higher off the ground from the side than it is from the back. I still think their algos needed serious amounts of work before being released. It's 2016 not 1916, there are consumer safety laws now, you can't get away with "it's your own damned fault, you were doing it wrong" anymore. Not as much, anyway. Yeah I know the driver has a big role in the blame game, but if you were allowed to get away with that then nothing would have safety features. Got caught in the industrial machinery? His fault for being a dumbass and putting his hand there... doesn't fly anymore.
And hiding under a technicality "oh he clicked an agreement and agreed to become a tester for our experimental software". OK. How many hours of training did he receive? What do you mean, none? The state rests.