Life is short.
With a little bit of luck each and everyone of us will reach old old and certainly by good luck/chance. Sadly some get struck down before they ware.
Safety testing is a valid science BUT the application of science to every day relevance requires a greater skill than just pure test numbers.
It is a fact that I/you could design a given test that ALL cars would fail. Testing / standards agencies wil alsways be pushing forwards in their requirements. I don't have an issue with this basic trend/philosophy but one has to think about real life, statistical, etc. occurrence profiles. For example in 100 real life crashes how many were oblique offside/nearside events at +40mph?
I don't know the answer to this. But I do know that x years ago many cars were rated 5* that now might rate 1*. YET in the UK our road speeds (legal or otherwise) have not increased so the likelihood of a given crash scenario if not that far different to what it was 10 or 20 years ago.
This presents a problem for buyers and manufactures alike. Do you chase the golden egg or just step back, be realistic and take what may come your way.
I would be more than happy to buy a modern Fiat Pander. "F" what Euro NCAP say.
If you had to buy a vehicle that was NCAP 5*, super ECO, super this, super that, etc. then you will no find one. You would be better off buying a Dinky Toy and driving that around the living room!