Interesting article.
I have to say that though it may surprise some to hear me say it I do have some sympathy for the therapist in that this was clearly entrapment. I don't for one moment believe that people can have their orientation changed, and certainly don't believe they should be encouraged to try, but it is rather difficult to condemn a therapist for attempting to help someone who has ASKED for that treatment.
The thing is if you say, "Yes well it can't be done, and therefore people should be banned from trying," then some smart Alec will undoubtedly come up and say "Well in my opinion changing sex can't really be done either and so perhaps people should be banned from trying to do that as well," and then where would we be?
You and I may disagree with their analysis of possibilities but of course they can argue exactly the same point. I don't think sexual orientation therapy works, they do, meanwhile they maybe don't think sex change works, and I do. So it comes down to a judgement call as to what is reasonable.
So the bottom line is even when I agree with the underlying sentiment of the article, as I do in this case, I always find myself somewhat uncomfortable when a journalist practices a deception to obtain a story, because in my view the ends do not always justify the means.