The Thunder used a similar approach on the pick and roll. They just played much harder and were a step quicker. This forced the Spurs to rush. Missing everything, the Spurs ditched the pick and roll for the iso game.
As well as Russell Westbrook and Kevin Durant played, the Spurs had the ball down 1 with under 10 seconds to go and a chance to win. It didn't go their way. Ultimately, holding the Thunder to 98 points is good enough to win. The defense was fine, holding the Thunder to 26.