I posted in another thread of mine about how my T recently asked me if her style of dealing with me had been hurtful in any way. She mentioned in particular her initial insistence that I accept the diagnosis of BPD, but she was also referring to her tendency to be somewhat confrontational and offering difficult feedback, (like telling me early on that I would make a good sniper!)
That session marked an absolute turning point for me. I became aware that I am allowed to have and express my own thoughts, even my doubts in therapy. And she became so much more human to me as well.

I think that T's who will never admit to anything or apologize for anything may be adhering to a particular therapeutic orientation, but to me it would begin to feel like a power trip. I would find it invalidating, and it would no doubt trigger stuff around my mother in an unhelpful way.