I would tell my therapist that I think my friend is being harmed by her therapist. I know I had a similar situation several years ago and it genuinely concerned me so I told my therapist about my concerns. She then acted (I don’t know what she did exactly) and less than a week later that therapist was no longer practicing. So I guess therapists have some self-policing protocols in place. Dunno though. Just a guess.
Anyway, if that therapist is not maintaining a therapeutic relationship then she needs to be re-educated so she stops harming people. JMO