I've actually tried to use hypnosis in a therapeutic setting before - or rather, a therapist attempted to hypnotize me. Although I was happy to play along - and viewed the experience as a form of guided meditation - I found the process offered no concrete results of any kind.

Which isn't to say it doesn't work for some people - even on a physiological level, which the study you cite to seems to suggest. Only that I can't help feeling you are either susceptible to hypnosis or not, and if not, nothing at all happens.