I am not a professional therapist, so this is just my gut reaction to the problem.
It looks to me like your T is trying to avoid the issue that he did not really know what the retreat would be like before you went to it. He is implicitly taking the line that it is up to you to decide whether you will go to this or that retreat, and afterwards he is willing to discuss with you the results of the retreat or any raw issues you may have. He's saying that he isn't responsible for what does or doesn't happen on the retreat.
But the fact of the matter is that if he refers clients to these retreats he should have been very clear about what happens. Otherwise he is just sending business to his pals and to hell with his clients.
I have thought about this thread a lot, and I don't see any way in hell that a survivor's recovery would be promoted by standing naked on a pedestal (!!!!) in front of others, all also naked, talking about what he dislikes about his penis and having one of the facilitators provide a commentary! This is just voyeurism on the part of the facilitators so far as I can see. Or shock therapy? I hope you will take Scotty Todd's advise and report this incident. You will be saving other survivors a similar experience.
It's terrible you got two of the rotten apples in the barrel. But I hope you will not be put off therapy because of this or be too badly retraumatized by what happened. ALL of the Ts I have worked with have been great and they have helped me so much. I feel sure that this applies to the majority of the others as well.
Nobody living can ever stop me
As I go walking my freedom highway.
Nobody living can make me turn back:
This land was made for you and me. (Woody Guthrie)