I find it very interesting that there are three current, active threads here with the underlying theme that "fairness" requires that a two putt green is expected.
Golf is not necessarily a game of fair! (Though I'll partially contradict that later)
To illustrate, I was recently playing in our afternoon dogfight with one of our less knowledgeable members. His tee shot on a par three crossed the adjacent teebox, finishing on the cart path next to a stand of azaleas (this wasn't as bad a shot as it sounds). He asked me where his relief was, and I told him (unfortunately) in the middle of the azalea (this had come up recently in a regional tournament, too). Of course, he could then take an unplayable lie, or declare the ball on the path unplayable and take relief with penalty, but that his best option (he was my partner so I advised him) was to play the ball off the path. He did and almost made a great par but wouldn't talk to me for the rest of the day.....
My point here is that nothing in the rules of golf OR in the setup of the course on a given day entitles the golfer to an easily executable shot regardless of his ball's position (on or off the green). Golf is a game of options and strategy, part of the beauty of golf architecture is challanging the golfer to play to his or her strengths (and terrifying him with his weaknesses).
Results of decent shots aren't always fair, but everyone's playing the same course. Remember the original rules:
1. Play the course as you find it.
2. Play the ball as it lies.
3. Play fair.
Jamey