Brad Klein,
I think you have to examine the evolutionary process of golf in order to address your question.
Golf started on links or links like sites void of trees and flora associated with gardens.
Early golf courses were clearly, BARREN fields of play, not remotely associated with garden like settings or formal gardens.
But, as golf and golf courses moved inland, perhaps to offset the absence of water or to compensate for the views of the industrialized world, landscaping the site/course took hold.
Unfortunately, in some cases, it not only took hold, it ran amuck.
Imagine playing Sand Hills or Wild Horse a dozen or so years after a beautification/arbor committee was formed.
Think how it would detract from the experience and from playing the golf course.
Conversely, urban, industrialized or sites surrounded by residential units could probably benefit from a measure of landscaping.
One of the things that dismayed me about Lehigh was the excessive plantings and focus on sprucing up every static site. Tees, greens and every location where carts would stop or park was inundated with flowers, shrubs and trees, all the work of out of control committees.
In addition, these items must be replenished and maintained, causing the capital and operating budget to take a hit AND diverting the focus from the golf course, the playing field, which is the primal lure.
I don't feel that a golf course is a garden and continue to battle against those that are trying to convert fields of play to formal or informal gardens.