Not all LGB people support the expansion to include TQ+ issues. Nor some of the side-effects e.g. women athletes forced to compete against men. Or a women-owned gym in Germany that was fined because the owner didn't want to allow males in the women-only space.
There is no disdain for "these people" (or groups, as a poster above suggested) and some of this people exist in my own live too, but disagreement about what is appropriate and neutral in a job ad, particularly of a charity which receives?/received public funding.