I disagree, OKC has been carried every step of the way. Fortunately they're so bad they can't take full advantage of it. Ive never seen a team carried so much by the refs, they're so bad that they should've lost in the 1st round where they needed ref help to beat both Memphis and LAC.
Okc can get away with murder on defense (I'm talking about OBVIOUS fouls) while SA gets called for touch fouls. Furthermore the refs allow OKC to stay in a rhythm all game long, can't score points? The refs got them, can't string together a great defensive sequence? No problem, refs got them.
The Spurs are at times completely unable to break away, make a run, because the refs are there. They completely neutralize SA's offense. Runs are how games are won/lost in this league, how you can maintain that lead. Example, KD and WB score on consecutive plays, the crowd goes wild, the energy is gaining momentum, suddenly Parker drains a jumper and the crowd is out of it. Now it's the same thing for OKC, but it's Crawford or Brothers bailing them out, silencing the crowd for them. The flow of an nba game can be quite sensitive, easily affected by anything, a single call can affect the momentum of a game.
OKC is just so bad that it seems like the refs just give up on them, and when they do SA breaks away.