It's a very valid point. But what really stands out to me in your post is that you describe 5 different models over 25 years, with 3 dominant players (Shaq, Jordan, Duncan) in over half the championships. If there were just one or two models, and there were dozens of different stars conforming to those models, it'd be a more compelling case that Durant can't create a new model for winning a championship.
As it is, you could just as easily make the case that the most dominant model in the NBA is that the very best player in the league tends to win championships. Period.
Now, I'm not saying Durant will be that good. (My money is on LeBron for the foreseeable future.) But it's certainly possible.
No Period.
The "very best" player tends to be defined by the best player on the championship team. It is backward looking.
During any particular season it is often hard to pick out the absolute single best player for that year. There are candidates.
During the Jordan era for example, Shaq, Malone, David Robinson and Hakeem put up some incredible season's. Look at their numbers. Amazing.
But, Jordan won the rings so he is the "best".
Additionaly, Boston recently, the Pistons, the last Spurs title team. None of those teams had the "best" player in the league.
LeBron was the best player in the NBA last season. Did he win?
I don't agree that having the #1 player in the league is the model to win a ring.
You have to have:
The #1 player (BUT, must be a two-way player) and a good cast of surrounding talent that plays great defense. Or
Two of the top 5 players. Or
Four or five All-Star caliber players that compliment each other.
And you are right about LeBron. He, like Durant is a matchup nightmare and a great scorer. But, he always could rebound. And LeBron plays defense. Always has just a little, and really turned it up the last couple seasons.