Adam,
Because you can adjust the position of their tees such that everyone's drives all end up in the same basic LZ.
Mike Jones,
When you look at a hole like the 6th at Pacific Dunes, or basically any angled, well protected green, position used to be a critical element to playing the hole well.
If we take my previous example, where the golfer was left with 160 yards in, the flight characteristics of the six (6) iron were such that the golfer had to try to reach an optimal LZ in order to maximize his chances of hitting the ball close to the hole. Prefered angles of attack.
Today, instead of a six (6) iron, a wedge can be hit to that same green, effectively negating the intent of the architectural features, and ignoring the prefered angles of attack.
And, if there wasn't the available land to move the tee back, today's golfer won't be 160 yards from the green, he'll be 80-100 or less, and using an L-Wedge from anywhere, fairway, rough or bunker, hence there's little relationship between playing the hole strategically, as intended by the architect and just bombing away, knowing that where ever you are, you're going to hit a Lob wedge into the green and have a good chance at a birdie.
This new method for playing a hole is called "Flogging"
I've said repeatedly, that when I lost a substantial amount of distance, that I still enjoyed the game. In some ways, more so, because I had to navigate myself around the golf course as the architect intended, thinking as he did on how best to overcome his attempts to frustrate my score, vis a vis his architectural philosophy and features.