I think he overly expanded the definition of AGP by making gynephilia or bisexuality itself automatically made a trans woman AGP if she individually doesn't have the actual strictly defined fetish
nobody overexpanded, imo his two types just describe too well two different clusters of transexuals it doesn't even matter if AGP was the only factor at play during the transition.
Also, a priori asserting that any trans women categorized by Blanchard as AGP who says their own experiences don't fit his model as a liar who must always fit Blanchard's assertions takes his model out of the realm of science and into the realm of ideology.
sexology or humanities aren't sciences, it all inevitably boils down to borderline unprovable ideas.
It's obvious almost all trannies know about his typology and feel strongly for it so it's not far-fetched at all to say interviewing or using questioners on trans people is not reliable and there has been meaningful research that had like 70% of trans people that took part of it deliberately requesting to comment on blanchard's theory even though it has never been directly mentioned or requested