Linters are normally used as style checkers, rather than as tools that enforce rules. So it's more useful to think of it is a "Hey, did you mean to do this? Would it be better another way?" check rather than as a sexism detector.

For instance, a sentence like "We're looking for guys and girls to join our development team" would get flagged by joblint. And that might give you pause, and realise that "We're looking for people to join our development team" is a perfectly good alternative to use instead.