I've honestly never really noticed whether T uses "why" questions or not, but my gut is that he does. I've never felt he manipulates his language much with me. I'm not one to feel judged by a "why" question though, so it wouldn't be on my radar. I like "why" questions myself. I work with "why" questions in terms of character motivation and language usage, etc. in my teaching all the time, so those kinds of conversations are just part and parcel to analysis, and what is therapy if not analysis of the self.