It's not in Hacker School's interest to skew their appeal toward certain groups of people for no reason.
Unfortunately, the lead time for solving the root cause is at least 1 generation. We will have to use stopgap solutions until then.
Interestingly, I'd never thought about that previously but as soon as I saw a reference to it I realized that I'd much less frequently seen women use the term in that context (with regard to vocational activities) compared to men, so, while I don't know that different word usage by gender is really the issue, I see that it certainly could be, and that it makes sense to avoid that usage in the context Hacker School was using it.
Hacking is a culture, not a job description, and in my experience, singleminded dedication to programming is not an indicator of ability. So I guess the real problem with "Hacker School" is that it's a programming school not a hacker school. A hacker (programming) school could never say anything like "you don't have to love programming" because being a hacker is pretty much defined by loving it.
I think the intended meaning is basically that there are cultural differences around whether people tend to express their enthusiasm for programming as "love" or not, and so Hacker School now doubts this term is the best indicator of whether a prospective participant has the kind of enthusiasm they're looking for.
It's true that "gendered word" has a totally separate meaning in linguistics, where it refers to the phenomenon where a noun attracts or requires agreement according to a class that the noun is in. In many languages these words need not refer to animate beings' gender at all, and in some languages the noun classes are totally abstract and unrelated to masculinity or femininity, although there's some disagreement about this terminology.
https://en.wikipedia.org/wiki/Noun_classes#Noun_classes_vers...
Anyway, I suggest reading the OP as saying "cultural differences, often along gender lines, in whether people commonly describe their relationship with programming as love".