Yes, they changed this in 8.0, but getting a forward collision warning will prime the hydraulics. If you even tap the brake pedal in response to a FCW, your car will take that to mean you agree with the emergency warning, and the car will brake hard until you attempt to accelerate or otherwise cancel the maneuver.
It's supposed to buy you reaction time, because a lot of times accidents could have been avoided if the driver actually braked to the car's limits. People tend to prioritize braking gently over guaranteeing that they have enough stop distance. But if you're not expecting it, it could make a false FCW situation a lot worse. It takes a lot of discipline, but when you get a FCW, stop accelerating and look before reaching for the brakes.
