You are kind to say that. In fact, I don’t think anyone, myself certainly included, can rely on memory to make a reliable audio comparison of vintage vs modern gear. Audio memory, especially of fine incremental differences, is very fleeting.
I assume (yeah, I know the saying) that a person or team at Slate has spent chunks of recent time comparing their modeling to hardware examples of the target vintage microphones. So about those desired vintage mics, Slate’s opinions are (probably) more current. That’s not to say that he would be unbiased about how good his models are, that’s asking for audio sainthood.
Modeling mics, in my limited experience, sound neutral. They sound somewhat like audio test mics. I kind of like neutral/dark on good-sounding sources.

IMHO this is analogous to the Artificial Intelligence programming, that was used to develop the "super Chess Programs" of today.

I remember over 30 years ago, when I helped a bit with the Novag Chess Program (played it over 200 games, as a young Master)

Are the LDC "emulations'" up to the "real thing" now? Not quite yet...
Chris

I'm interested in the Beesneez Oliver Fet

I'd include reaching out to Ben S. direct then, one plus is that Oliver was a bona fide genius.
Chris