I think you need to read (or re-read) the earlier posts in this thread on this topic; there are some here who will dispute your spreading "urban legends" as fact. @:-)

Back to the original topic: the one and only time I experienced a medical diversion of an aircraft was, totally coincidentally, also the one and only time I ever got an operational upgrade (from economy to business): on an SFO-LHR nonstop on UA several years ago.... except that the medical emergency turned it into a "one-stop" in eastern Canada. The plane had to dump fuel before landing there or it would have been too heavy. Fortunately, we were told that the victim was going to be OK, though not told the nature of his medical problem, whether heart attack or something else. (And I considered myself quite lucky to have had the free upgrade, given the extra hours added to our flight by the incident.)