I agree with you, people should do some research before accepting any type of procedure. However, if someone's dying, and their only choice is to do the procedure in order to live, then they don't really have a choice, and would probably agree to it.
So, the decision is still in the patients hand, if she/he wants it or not. But I think all doctors should go through the whole procedure before doing it, but then again, if a patient really trusted their doctor, they wouldn't need every single detail, so maybe this is the reason why the girl you mention in the article did the surgery.