The Thunder had 3 chances to end series and ended up being the 10th team to lose after being up 3-1.
I think being down 4 points on the road in game 7 against the record setting 73 win defending champs is a heck of an accomplishment, and just about every team in the last 10 years would be glad to be in that situation. They couldn't close it out, but that's because GS had some historic shooting displays.