Serious question: if the inclusion of this character is pushing an agenda, what would NOT be pushing an agenda? The character does nothing but exist and happens to be transgender (a quality that is only revealed after optional dialogue choices). It is the base-line minimum of existence. If this is promoting an agenda, what isn't?
Simple, in Paragon's mind, white, straight, cis, men are allowed to exist, explore the world, have opinions, and do as they will. The minute that a character is not one of those qualities, it amounts to pushing an agenda against white, straight, cis, men. And really, white, straight, cis, men are the most oppressed people in America right now.
And, if you think I am kidding or being too SJW by saying this, I would like to point out that a former Admin of this board has said as much non-facetiously.