Yes, your'e right. That's what it's for. Like I said, something you should learn to do for yourself. It uses a lot more components - therefore more things to go wrong. It doesn't always improve braking. Even the manufacturers warn that in some instances it might take longer to stop. With all hi-tec devices to make the drivers job 'easier', by their very nature they remove some control from the driver at the same time. NOTHING, that is, NOTHING can equal a person with making split-second changes of decisions or actions, as circumstances change.
The several instances, here and overseas recently, of cars running away, at full throttle, with their driver trapped inside, having the steering only remaining under driver control, is what we should expect more of, as we 'progress' to-wards cars that automatically have their speed controlled from wires in road surface, or by sattelite. Devices to stop you driving close to, or colliding with, the rear of another vehicle, etc., and prob more developement of the present 'stability control' rubbish.