You're interpreting "override" as a boolean (either/or) relationship when the poster was describing an analog relationship. The "stop" signal of the brakes out

You're interpreting "override" as a boolean (either/or) relationship when the poster was describing an analog relationship. The "stop" signal of the brakes outweighs/overrides the "go" signal of the throttle by some low multiple. If I had to guess, the brakes on an average car can consume 3-4 times as much horsespower as the engine produces. Porsche used to describe some of their brakes as "2000 hp brakes".