Where I work gathers equality monitoring and I was delighted recently changed from "gender" to "sex" and separately "is your gender the same as your sex". It is far more informative that way.
I had mentioned the original inaccuracy to someone and I assumed I was responsible for the change but I've since been told there is another change made that was requested by our funders. So either I was responsible; in which case I'm smug, or funders are catching on which would be even better!
I guess what I'm saying is that baby steps are working. It is so important that we get accurate information so that we can find out how to get everyone properly informed of things that are available for them. I'm delighted to see it is slowly happening.