SpaceGraye,

It's not the pedal actually become stuck in some situations, its the electronic servo that is malfunctioning on some vehicles. It is not connected directly to the pedal.

The issue is not revolving around the pedal actually become stuck, but an electrical malfunction in some instances.

In the case of lexus, some gas pedals have actually moved downward on their own, due to the manner by which artificial resistance is communicated back to the driver.