AI update: I emailed Dr. T yesterday regarding my concerns. He responded this morning, apologizing for bringing the topic up at the end of session (saying it was "thoughtless" of him--his word, not mine). He said he's just investigating it right now, seeing what clients think and what other therapists think about it. And that if he were to start using it, he would "100%" give me the option of whether or not he would use it with me. So that made me feel much better about it.