Well if we want to be honest and fair then it should be pointed out that Parker was also 1-3 in the 4th before taking the final 3 shots, and to those pointing out that Kawhi was at 42%, Parker was at 38% before those final 3 shots and even after those 3 shots he ended the game at 44%. Parker also has a higher season FG% than Kawhi so it could be argued that Parker was struggling more than Kawhi was at that point.
Either way it worked out, the team won, and ultimately that is what really matters. If there's anything to complain about it's the defense late in the game. 21 points allowed in the final 6 minutes.