Friendly reminder that not everyone's first language is English, and for a lot of people for whom it isn't, gender-neutral pronouns can be a pretty foreign concept and it's easy to forget about it. We just apply the natural gender that the word has in our language (such as a chair being feminine in both Portugese and French, so a lot of natives of those languages may mistakenly refer to a chair as "her" in English). I wouldn't go so far as assume the person you're replying to is sexist or whatever it is you're thinking just from the fact they referred to an imaginary captain as "he".