"The Into The Breach reference written and maintained by the players.
Please feel free to contribute by creating new articles or expanding on existing ones."
So not official. I don't know if I'll get an answer but I'll ask the devs
EDIT: I got an answer, in 2 parts:
1) Chen's female.
2) The wiki is "using chris's temporary text" but I'm not 100% sure what that means, if Chris is a character or the text writer.