I like how you disagree with the parent comment suggesting you drive very aggressively, and then nearly every example you give of the car being wrong is a direct result of you driving very aggressively.
Lifting off the throttle and on to the brakes quickly but gently is a natural safety decision if your going fast on a motorway and someone slower changes into your lane up ahead.
This is the primary reason for emergency brake assist kicking in for me in my car, Skoda Superb (VW group so similar software). It's only ever happened on the Autobahn where there can be higher speed differentials. It's a bit annoying when it does, but it's all controllable.
Other than that, I find my car's safety stuff pretty good. Lane assist isn't intrusive, traction control is functional (car is 4WD 280hp), warning tones are relevant and customizable, etc.
A car cutting in front of me and me not panicking and slamming on the brakes is actually a mark of knowing how to drive.
The one example of me driving aggressively had nothing to do with forward collision warning, and was actually about brake boost systems that choose to brake more aggressively FOR you when you might not want it to, and it has nothing to do with any cars anywhere near you.
