It shouldn't matter, it's just music. And one car that failed the test was a $50K Suburban. If it's this flaky, maybe some other car works fine but one day it stops.

I think we should collectively start saying things like "wow, look at how horrible this system is. I wonder how bad the computer control for steering or brakes is!"

The point being, further hurt the sales of any cars like this, because really, it could be true.

Eh, that's something a lot of people would notice and the government would get involved in, and it's been played out already. I generally trust GM's steering and brakes to work. Infotainment is not their expertise, and if they were releasing a self-driving car, I'd also be wary given their track record.