It is a challenge for a human, I feel for the algorithm folks trying to test the obscured vision.
Secondly, when driving in spotty traction conditions, it is good to use a lower numbered gear and a safe speed combined. That same loss of traction event can result in a very rapid spin of the tires due to the higher gears and torque combining to produce a rapid increase in tire spin rate when not constrained by the weight of the car and traction.
This can happen before a human can respond.
The higher gear puts the engine at a higher rpm and closer to it's natural unconstrained speed, which diminished both the event and it's impact considerably.
The human experiences momentary chatter as the grip of the tire varies, but does not experience runaway spin and the abrupt loss of control it brings.
I would think an automated car could be programmed with this all in mind and do rather well.
An awful lot of humans could use this kind of data programmed in as well. :)