The judge(s) would point you to that long section in WKA that detailed the evolution of NBS to NBC. There is a reason that so much of WKA was devoted to that particular subject.
Didn't even Ankeny state that Ark wasn't a NBC?
There's no evolution from NBS to NBC. The last time Gray mentions the term NBC in the WKA decision is when he quotes Minor and affirms that Virginia Minor's citizenship was based on having citizen parents. Why do you suppose he did this when it was never specified in Minor that she was born of citizen parents??
Gray's lengthy essay on NBS is to give teeth to the 14th amendment so that it can override an international treaty that otherwise prevented Ark from being a U.S. citizen. He also clearly says that the 14th amendment does NOT define natural-born citizenship:
In Minor v. Happersett, Chief Justice Waite, when construing, in behalf of the court, the very provision of the Fourteenth Amendment now in question, said: "The Constitution does not, in words, say who shall be natural-born citizens.""