I disagree with everyone on this one, and I do mean everyone. Evidently I am the only person who feels the problem was caused by the GALLERY ROPES!
Think about it, wasn't the real problem the number of spectators and the concern for their paid entry right to observe a golf tournament from as close to the action as possible? Isn't this why there are so many "drop areas" at tournaments because of the greenside bleachers and tents and even glass-enclosed air conditioned luxury suites surrounding each green?
Seriously, we keep adjusting the game to accomodate those who show up to watch it, accept the boorish behavior of every time someone swings, even a tee shot on a 700-yard par five, that at least one voice echoes out a hundredth of a second after contact "In the hole!", all in the name of attendance and money to be given to the chosen few competing.
Just as long ago the battle over controling equipment and distance was lost, so too the battle over crowd control and how it effects the outcome of a tournament. For this we can point to those in the UK who set such a fine example nearly trampling the final pairing in the "Open" championship. How many times have we seen the replay of Palmer staggering through the crowds and thought how cute it looked rather than realize the dangerous precedent it was setting.
So today we have "stadium" golf with courses designed and built to provide massive viewing areas which create wonderful television shots and impressive noise levels when shots are holed or missed or even those, as in the case of a manufactured one in the Phoenix tournament, where players are subjected to "good-natured" drunken abuse.
There was simply no reason for those at the PGA tournament to have been allowed that close to the play when it meant that they would be directly effecting the course's playbility. It was known that they would and the proof that this is so was the pre-tournament rules sheet placed in every players locker before they hit a single ball.
Of course, that Dustin Johnson admitted not reading it has no bearing in this either. The world of those vaguely familiar with the game are now mocking it and its rules at the mouth of every so-called sports expert on their radio talk shows and TV news roundups.
Where are all those who mocked Michelle Wie when she cost herself by "NOT KNOWING THE RULES" yet for Dustin its a case of "He Got SCREWED!"
Come on guys, the problem isn't that there are 1,000+ bunkers at Whistling Straights and not 1,000+ rakes with one in each, its that there is too much GRASS! If Pete Dye had simply made large expanses of sand and called them "waste" areas this course would be more akin to a Lake Michigan Pine Valley than a mid-west Ballybunion.
The problem isn't one of design. It is one of out-of-control fans and an inability to deal with allowing too many people into an area not made for them all.