YABU as @Perpetualheadache said, it's just a phrase suggestion, its not a political statement by Microsoft that they would only be allowing you to use gender neutral wording in all your written documents from now on. From the brief part of the document you can see it would also be a more concise phrasing. There's definitely more at work on that document than they're trying to control your phrasing such as spell check and other similar checks.
If you are genuinely going to leave Microsoft because used an algorithm to find a different phrasing then I can recommend WPS office, a great free open source package. However, you're being dramatic and looking for something that's not there.