If this happened to me, I would send him away—or if I went to his studio, I would say "not you" and turn around. Nothing would make me come back, even if he says that my massage is free if it was unsatisfactory. (Newsflash: I'm already dissatisfied because the person I hired isn't the one I see in front of me.)
When I go to a spa and get a massage, I am paying for the therapist's technique. I would first and foremost expect a good- to great massage if he wants a repeat customer. If he were good-looking or offered anything beyond the massage, that's a bonus. I don't look for that initially, however.
When I hire from MF or MM4M, it's because I find the guy good-looking and the reviews (from this forum) make him out to be competent in the technique department. It's not an or situation, especially if he wants me to come back.
Also, like what a few others have already said, you're being complicit in the therapist's deception by entertaining him despite the false advertising. But for me, this only applies to guys who are nothing like their pictures (either different person or the same guy with a significant age gap). I won't be critical with a masseur who looks like his photos, but I can tell goes to Cici's Pizza once a month, since I'm not hiring them as an escort.