I re-watched the game, and while obviously Kyrie's bucket was huge, given the moment and GSW being up 4 points in a highly contested game, Bron's 6 point sequence (3 free throws, plus clutch 3) was just as huge. He misses any of those and GSW goes up 6 or more, that would likely have been it in a game that close.
5:24 LeBron James makes free throw 1 of 3 84 - 87
5:24 LeBron James makes free throw 2 of 3 85 - 87
5:24 LeBron James makes free throw 3 of 3 86 - 87
5:16 Stephen Curry Out-of-Bounds Bad Pass Turnover 86 - 87
4:52 LeBron James makes 26-foot three pointer 89 - 87
This sequence doesn't happen, and the stage isn't set for Kyrie's heroics. You have to either be an idiot, or have an agenda not to understand that.