Why not ? Chrysler can react nearly immediately to a stupid "Moose avoidance test". Why can't Mazda react to a test that has its results mandated by the US government to be on a window stickr?
Just because one country's government says something doesn't mean the rest of the world will follow. Mazda may listen but all depends on other countries test results.
Plus this isn't even in the same league as that.
That is why I will reserve judgement until more countries test results are out.