I did not read the Ansimov article, but the link sounds like an overly romantic view of orthodoxy. What about it was zetetic, would you say?
Namely this part
when people thought the earth was flat, they were wrong. When people thought the earth was spherical, they were wrong. But if you think that thinking the earth is spherical is just as wrong as thinking the earth is flat, then your view is wronger than both of them put together.
I'm not entirely sure the authors interpreted the article correctly, but I thought it was interesting because that describes a situation where you can't rely on a supposition to interpret the truth because they can be equally right or wrong.
So for a RET theory or FET theory neither of them can be the 'truth'.
I related it to the Zetetic method because I understood it to be purely based on observation without superstition, which is what that article is describing (in a round about way).