For people who are eager to think this is a don't-assume-gender charade: try misgendering a cis person next time you're out, and see how much they don't care. _You_ are who this is for
I've never been offended by getting misgendered, but hearing people get misgendered does, at times, bother me in the sense that it can make the sentence difficult to understand.
I know this is annecdotal, but you did ask.
Edit:
In case, one is curious or unbelieving. Consider that my name is Nikita.