Ultimately, what happens out there is up to the golfer. Blaming the caddie for poor outcomes is, well, punk. If you're on the bag, and the golfer wants you to tell him what you think, you tell him what you think . . . but the golfer has to make the decision on what play or shot to attempt, if Jerry wanted to go for it, he should have gone for it! And if a touring pro can't par a par 5, not matter what approach he uses, does he deserve to win the tournament?
Of course, that's just my opinion, I could be wrong . . .
Although you pose an interesting query to stimulate some discussion, I really the thought this board would be abuzz about Justin's near history making melt down . . . I guess if he had made history, that may have started some chatter?