It’s a one-time error the maintainer made 3 years ago (at a time when much of the US-influenced west was going crazy with polarization over the use of pronouns), not a consistent behavior of intolerance as one would expect given the level of hostility towards the project seen here. I personally find it weirder to hold such a long-standing grudge for a one-off error, and over a project one is not even personally involved with.