Funny that he still doesn't have a clue what is this about. Ed Greenwood probably thinks that the problem is that there is a tranny in the game, totally missing the point about the shitty writing.
He most likely has no idea. You have to remember that Ed Greenwood lived all his juvenile fantasies through his characters in Faerun, especially Elminster, his self-insert. Along the way, he became a nerd celebrity and sold a boatload of novels aimed at people who wished to do the same:
Elminster has literally saved the world multiple times by himself or by acting with a group of other heroes, has fucked almost every notable female spellcaster in the world including two incarnations of Mystra the Goddess of Magic (but not the third incarnation (Midnight) who became Mystra after Time of Troubles - in a weird moment of introspection, third Mystra was so troubled of her predecessors close relationship with Elminster that she wiped his memory - though she grew to love him sufficiently that she invaded The Nine Hells once to rescue her and when the Demon Lords retaliated, all of creation was nearly unraveled) and plenty of non-caster women as well. In Faerun, all women are hot and stroll around in leather thigh-high boots. When entrusted to become the mentor and father-figure for The Seven, he eventually even developed a May-December relationship with The Simbul who, by the way, has a habit of marching around wearing only flowing, open robes even after she becomes the Witch-Queen of Aglarond. I'm not making this shit up, it's all in his books.
So to him, Faerun is a place where everybody gets to enact all of their fantasies and dreams. If that means being a tranny shopkeeper, then that's just fine.