The Spurs committed 22 turnovers and got only 11 points from Kawhi and Boris, Miami got almost 80 points from Wade, Bosh, Lebron, and Allen, and the Spurs won by 15. We can all sit here and talk about the Spurs had no business winning the game - but the Heat were never able to execute well enough to go up by more than 7 during that meltdown by SA. Missed shots and fouls by the Heat allowed the Spurs to stick around, and then the 4th happened.
Bottom line is, championship teams find ways to win games that they have no business winning. The Spurs had no business winning Game 6 of the 2003 Finals, and they found a way to come back. They suffered demoralizing blows in Games 3 and 4 in Detroit in 05, and found a way to win Games 5 and 7. They couldn't shake OKC in Game 6, and they found a way to get their first W in 10 tries at Chesapeake to win the West. Sometimes, the team will suck miserably. However, one of the defining characteristics of this Spurs team is that you never know where the X Factor will come from. One game ago, it was Diaw with 26 points. Tonight, he only had 2 and the Spurs won by 15. Champions figure out how to win when their most trusted resources and game plans fail.