The hypocrisy from people on this sort of stuff is off the charts. The same people that slam KD for a "lack of competitiveness" are the same ones that will later decry the sport of basketball and the NBA specifically for promoting the star over the team. You can't have it both ways; you can't portray Kobe as an egomaniac and terrible teammate and then kill LeBron or KD for conforming to a lot of what we claim team sports are supposed to be about (sacrifice, team glory over personal glory, the willingness to co-exist with others, etc.).
Now, that being said, do I like the move? No. He had more than enough to win with in Oklahoma City, and when you join the team that beat you (in part because of your own shortcomings in game six), perhaps it does reveal some level of apathy about you as a competitor.
But I bet a lot of people in this thread don't have a problem with five top ten recruits committing to play for Geno (I don't know whether that's actually the case, but the point stands) every couple years. Somehow, in college sports, nobody has a problem with programs hoarding a radically disproportionate rate of top talent, and nobody questions the competitiveness of the athletes that decide they'd rather sustain a tradition of greatness instead of forging their own legacy elsewhere.
Self-interest always obscures the idealistic definition of team sport. Talk shows like First Take lead the way in cultivating a comically narcissistic sports landscape (how is such and such going to effect this guys legacy?!?) that is actually contradictory in more ways than one.
Stephen A. Smith can shriek at the top of his lungs about how this is the softest move he's ever seen or something like that. He's also the one that (and he's not alone on this) allows independent variables to skew his perception of individuals to extremes that perpetuate decisions like this one. It strikes me as hollow, then, when criticism pours in from the same people who will be the first to discard the nuance that a true dialogue on a players worth demands by covering their ears and pointing to their inability to achieve the pinnacle of team success.