Just doing some reading of back issue links, and I think this article gives a good insight into the "art" of surgery and medicine that we physicians have to deal with when the data is not sufficient to give all answers.
I agree with the author though - the sleeve is a reasonable balance of risk vs benefit for a large number of patients, but they should each understand that there is a chance that it may require future revision. "Failure" of the operation does not mean that the patient, surgeon or the operation deserves any "blame" however. Unfortunately, it is usually the poor patient who blames him or herself - often unfairly.
No perfect operations, including sleeve!