They say the hardest games to win in the NBA are to close out a series, especially on the road. The Oklahoma City Thunder had its shot in Game 6 of the Western Conference Finals to punch its ticket back to the NBA Finals for the second straight year. That old adage remained true for a team that is now 0-4 under head coach Mark Daigneault in Game 6s. The Thunder were beaten down by the San Antonio Spurs on Thursday night, 118-91. The Thunder started slow, on the wrong side of a 9-2 run, and never recovered in this wire-to-wire loss at the hands of the Spurs. The 3 point shooting crushed the Thunder as San Antonio made five more triples than Oklahoma City and used a 20-0 run to blow past Oklahoma City. Here are three takeaways from this contest.…