Not by anyone I take seriously in this context, so far.
By "this context" I assume you mean just the Emperor and his courtiers?

And we should accept my premise, since the results are both internally consistent and actually useful.
"internally consistent" seems a stretch - and a long one at that. Particularly when much of the "discussion" here of late seems to be squabbling over whether various intersex people are male or female when the most rational conclusion is that they are neither, that they're sexless.
Say, are you British? Reminds me of a jest about the Englishman who was such a stiff-upper-lip type of fellow that he wouldn't say "◊◊◊◊" with a mouth full of it ...
As for "actually useful", one
can often use a screw-driver as a hammer though not without seriously compromising its later use as the former.
Also, why are you using Griffiths as a stand-in for actual biologists, when we have ample evidence from actual biologists?
If we're bandying about various "true Scotsmen" then it might help to have some sort of consensus on what qualifies people as such.
And when it comes to discussions on the biological definitions for the sexes - the topic du jour, if I'm not mistaken, then "Scotsmen" with an understanding and appreciation of the principles that undergird such definitions are likely to carry more weight than "actual biologists", many of whom are little better than "scientism-ists".
Not really a shot at Rolfe as there are rather a large number of so-called "biologists" - Jerry Coyne, Colin Wright, Emma Hilton, PZ Myers, etc., etc., ... - who clearly haven't an effen clue about many of the foundational principles that undergird their discipline - and which have some relevance to the transgender "debate".
You really might want to try reading and reflecting on the well-evidenced arguments of biologist-extraordinaire Marc van Regenmortel:
"Sections 4–8 of this review followed a chronological presentation of recent developments in viral taxonomy which revealed that the field has been plagued by an uninterrupted series of conflicting views, heated disagreements and acrimonious controversies that may seem to some to be out of place in a scientific debate. The reason, of course, is that the subject of virus taxonomy and nomenclature lies at the interface between virological science and areas of philosophy such as logic, ontology and epistemology which unfortunately are rarely taught in university curricula followed by science students (Blachowicz 2009)."
https://www.researchgate.net/public...tes_on_definitions_and_names_of_virus_species
https://en.wikipedia.org/wiki/Marc_H._V._van_Regenmortel
The issue is less one of the nitty-gritties of various biological processes - on which I'll cheerfully concede Rolfe's expertise - than of "areas of philosophy such as logic, ontology and epistemology" on which I expect Griffiths and van Regenmortel have a bit more "gravitas" and credibility.