I have two vehicles with this system and they have never “violently taken control”. In most situations, the system gives an audible alert while pretension the brakes. If you react within the alert window you retain full control with the benefit of firm brakes (y’all ever remember getting soft brakes?).

I don’t even want to know what situations I’d need to be in for my vehicle to actually emergency brake, but I don’t want to find out. It seems like I’m already going to be hitting something anyways so any speed it can bleed off is better.