I don't think its about turning into a bunch of pricks, although I see your point. For me, its the fact that at the end of the day, golf is still a competition sport, and this wasn't some charity event, this was a major. Given how close the match was going into the final hole, in my opinion, the situation merits more of a "win at all costs" mentality. Not a Coach Jason Kidd - intentionally spill water on the court to stall time - win at all costs... but more of a less courteous, win at all costs. If u catch my drift.
I don't catch your drift. Golf is a game of shots in stroke play so what does it matter when they hit these shots under difficult circumstances? The idea of forcing your competitor to be at a disadvantage is not what the game is about. It's about you making the shots to beat your opponent. Phil played great, tired at the end, bogeyed a key hole and just missed a near miracle chip in for the tie.