Let's say that there are two possibilities: The Earth is round and the Earth is flat.
If the Earth is round:
Zetetic method: Oh! The Earth looks flat!
Zetetic conclusion: The Earth is flat
If the Earth is flat:
Zetetic method: Oh! The Earth looks flat!
Zetetic conclusion: The Earth is flat.
My point? That the Zetetic method gives the same result regardless of whether or not the Earth is round or flat. Therefore, to try to use the zetetic method to support the FE theory is flawed, because that same method is not exclusive to a FE.
An analogy:
An imaginary method called the "mix together blue and yellow" method. If the result turns out to be green, then Colts will make the playoffs. If not, then the Colts will not make the playoffs.
If the Colts make the playoffs:
The blue and yellow will mix to be green. Therefore, the Colts will not make the playoffs.
If the Colts don't make the playoffs:
The blue and yellow will mix to be green. Therefore, the Colts will not make the playoffs.
See? The zetetic method will support FE regardless of whether or not the Earth is really round or flat; note that satellite images show that the Earth is obviously round, especially since we landed on the moon, therefore it is a biased and unreliable method and cannot be used as an if A then B proof.