Unfortunately as they are an American Highway organization they don’t take off road (track) use into account. For the past few years we have seen an elevated number of these failures on track driven cars once they reached the 4 or 5 year old mark. Two of them have resulted in incidents with one car a total loss.
While the NHTSA will not direct Porsche to resolve the problem through a recall it’s still the owner’s responsibility to insure that this failure doesn’t occur at a UCR event. It’s a shame that they “identify” the problem and still leave the owners financially responsible for correcting it.