As far as the whole "so-and-so's game wasn't really predicated on athleticism," I don't really buy it. Tom Gugliota's game wasn't really based on his athleticism, but his knee injury was obviously still disastrous to his game. Now, his injury, formally known as the Randy Livingston Syndrome (RLS) was arguably the worst knee injury in sports history, but it doesn't matter. NBA Basketball players might not need to be super-athletic, but if you can't move on the court, you won't be effective.
Microfracture surgery seems to be one of the dumbest surgeries out there. It seems irresponsible to me that Suns doctors basically say, "OK, we're going to go in there and do a little scope of the knee." Then they administer the anestesia, perform surgery, and when the player wakes up, they say, "oh, by the way, we went in there and effectively ended your career."