Indeed, the last thing we need is some kind of KC incident in which some assholes are pushy and the author/artist just can't rise above that.
Sometimes Xelvy seems to go with a white shade anyway.
But, to be honest, Xelvy seems like a bit of a scat fetish person, and doesn't bring it to MGQ. So there really is a chance Xelvy would get offended.
And since Xelvy does a lot of awesome work for the series, I wouldn't want to create some situation where Xelvy gets triggered.