So the author always refers to a person as SHE.
I would agree that this is a case where the author was trying to be "politically correct" and "grammatically correct" at the same time -- thus he was unwilling to use either "he" or "they" after the gender-neutral, singular noun "person."

I would also agree with Deborski that in most circumstances, trying to fight discrimination against women by using "inclusive" pronouns or by changing "manhole cover" to "sewer-access lid" is completely stupid.