@BloodySorcerer Botodopo is likely referring to a couple of different things:
*Chapters 29 and 30 where Teresa and Franco pretty damn explicitly embrace the whole trap/reverse trap thing.
*Little side remarks making an appearance through various chapters up to this point.
*9 solid pages of Chapter 41 where Franco is very obviously cross-dressing and taking the feminine role in this practice wedding, while both of Balud's alternate personalities are are not just openly approving, but actively berating Balud (a young heterosexual male from a conservative family) for not immediately understanding
and approving of it.
*And that entirely unnecessary footnote at the end where, despite the sophistic lip service to "unknown impact", it explicitly comments on the "subsequent trap boom" (aka, immediately or shortly after the publishing of the book) in the future.
Also, I specifically want to address: you claim, "...nor does he address himself as being anything other than a male." That is factually inaccurate. Observe Chapter 30 page 3/20, in which Franco says, and I quote, "...thought that I would live the rest of my life lying to myself. But after meeting you and being treated like a princess rather than a prince, I truly felt joy for the first time in my life."
The author has the good sense to keep this whole thing a side story to Balud's mission, but (s)he is not being at all subtle about pushing the trap fetish when Teresa and Franco take center stage, and those of us who don't share that fetish find it very annoying when an otherwise good story starts devolving into magical realm territory. Hopefully, the footnote towards the end of this chapter indicates that this downward slide has been halted and will not continue.