Boston had a 4th quarter collapse, they were outscored 28-19, and lost their composure a bit at the end, the Curry three at 1:42 caused it, missing shots--they didn't score in the final 1:32--turning the ball over. They had to foul but they kept choosing Curry to foul. He scored the last five points and finished with 43.
No, there are no lessons, but there is arithmetic. Had Boston won they would have needed one more win in three games to win the title. Now they have to win two of three, same as Golden State. That three was the turning point in the game and with any other team than the Amnesiacs would be the turning point in the series. They will erase the memory of it, sure; but you can't erase the math. It was the turning point in the series and Golden State will win it.
