I'm sorry this happened to you. These are the things that scare me about the Model 3 ramp up to 500k cars/year. Hard to do and they want to do it fast. Their track record for the smaller details isn't the greatest, and when you're spending 100k on a car, the details matter. To me at least.
FWIW, the drive software on the car is independent of the displays. So, pressing the pedal, braking and steering is probably very well tested. I've had the main drivers screen crash on me and I have no idea how fast I'm going (follow the car in front of you) while the screen takes 1 minute to reboot.
But you're right about the QC. Although, I don't think Tesla is alone in this, every startup developing autonomous software (uber, cruise, google) will probably have their own unique quirks.
> I've had the main drivers screen crash on me and I have no idea how fast I'm going
That's somewhat terrifying! I'm surprised there isn't a requirement for a backup, analogue version of core instruments, as there is for planes fitted with digital displays.
-Tesla owner since 2013.