Phill, if every car on the road had such safety features I'd imagine there'd be gridlock as none of them would move. They certainly do take things to extremes, I know there's been a cry and hue about the speed limit beeps about how annoying they are when 1km over and they start on some model cars however my God Daughter moved to the Netherlands early this year and she already has 2 speeding tickets for being over 3kph and 1 kph. Yep, over there, there is no leeway whatsoever, hopefully we don't become the same over here.
The ANCAP safety ratings are being disputed by a number of car companies, some even refusing to get their cars rated all because of some of the extremes of their measures. Unfortunately so many 4WD's are used purely for mums to take their kids to school, hell we either biked it or generally walked it.
As you say it's the insurer's you have to be careful of.