1. There’s an identified mechanism by which the software could accelerate without the pedal depressed.
2. In my car, if I step gently on both pedals, they both take effect. (Which is reasonable: starting uphill is a thing.). If I step harder on both pedals, the car chimes at me and the motor output is reduced automatically.
In every car, the brake is much, much stronger than the accelerator, and easily overpowered by braking. Every one of these cases was simply a person who accidentally stepped on the gas, thinking it was the brake. If you ever feel like this is happening to you, pick your foot up and try again.
