Sorry to hear about your psychiatrist. I suspect this falls into the university trap: "Great" professors are in fact great researchers; there's comparatively little reward in being a great teacher (or listener to your patients).

Hmm perhaps also because smoking behavior probably doesn't change much without accompanying lifestyle changes and confounding factors.

Still we didn't have schizophrenics who happened to pick up smoking and were completely cured, right? (right?) So the magnitude of effect is helpful, but not curative.