“The truck’s brake didn’t disengage the accelerator pedal.” So the driver did indeed stomp the gas. Why is this even a headline.
You can feel that the brakes are what's holding you, but never do you feel that they're about to fail and you're about to floor ~520hp unexpectedly.
In this case the Tesla was able to overpower its more powerful brakes and drag the car forward. That should never happen.
- user has depressed brake
- user has depressed accelerator
... and needs to pick a priority between these two inputs, I am available for consulting.