Based on what you've described I'd characterize the T's behavior as being incompetent. Unfortunately, the type of incompetence they displayed is very common as the professional training itself contains many erroneous ideas, not based on research and not connected to the reality of how the human brain and everything it's connected to operates. The existing trauma research demonstrates how some well-established psychotherapy methods can be harmful because they don't take into account the physiology of trauma. Your T seems to follow the classic traditional methods when they don't have to listen to you and try to understand your own experience, but, instead, they are supposed to give you their own ideas of what you "must be" feeling that should be accepted as facts and also tell you what to do about it. This is a very authoritarian approach and an arrogant one to take. Despite this method being taught in training, I consider therapists who use it incompetent because they don't have the reality-based knowledge. And, frankly, I would question the intentions of a therapist who chooses to practice this way.

So, my characterization of the behavior you've described is incompetence. In that sense, your own insight on that is right on, I think, and that is "they don't know what they are doing". Beyond that I cannot say anything because I don't
have enough information to judge the therapist's intentions and to speculate on why they do what they do.