I'm not really sure. Perhaps the first harm is to assume that there is gender bias in the first place.  It wasn't really until the post-war period when a small group became consumed with the word "man" and how it sounded just like "man" without disginguishing that there are diferent definitions.  Once the hand-wringing began it became more and more difficult for these to accept the fact that it is no more a gender bias than than a color bias.  If some hear it as such, I suggest that these are the ones with the bias.  
A second harm may be to assume that the Church is the place to drive a change in secular culture.  It is a sad, milquetoast Church that must worry about the bleating of those who cannot but make noise if they do not get their way - to the detriment of both language and theology.