Can't see how. Even without Brake Assist I could lock up all four wheels to the point that ABS did its stuff, so someone braking 'properly' would get exactly the same force from the seatbelts. I would have braked that hard eventually, but much more gradually, hence longer stopping distance.
Incidentally, ABS can do things that even the 'perfect' driver cannot
- e.g. modulate the braking force to individual wheels. Which is presumably why racing cars have it where permitted and where the extra weight is justified by lap time gains.
It was a strange feeling, suddenly feeling the brakes go more powerful. However as soon as you release pedal pressure normal service is resumed. I'm happy to sort out the rear-end shunt with the guy behind while the small child pedals off on his bike.
I get your point, but I recently had an incident where I was almost rear-ended in the Passat by a Micra, simply because I had great brakes and she didn't. The Transit behind her had even worse brakes, which is why her Micra is almost certainly now a write-off. If all the cars in that sequence had crap brakes then that accident wouldn't have happened, but somewhere at the front something nasty would have happened.
We shouldn't limit the stopping potential of new cars because old cars aren't as good. The drivers of the old cars (including me) need to be aware of the potential of the car in front and position themselves accordingly. That's kind of why I posted it here.