Dunne — "...what makes a golf course great" is partially answered by bringing attention to courses, regardless of whether you agree or disagree with which ones have been selected. The reader is not as stupid as you imagine, and the panels are by no means entirely stupid either. The pretty pictures of today are placeholders for the grainy, black and white engravings of Golf Illustrated, c.1900, 1901, etc.
I agree with much of your post about the emphasis on short, "no-long-reads" in many modern periodicals. However, I believe each of our primary golf magazines has done well to keep golf architecture alive, allowing writing which gets at the heart of your "...what makes a golf course great" question. Whitten, writing about Jeff's work for example, passed on some philosophies which might stick with the reader. Of course, whether an opinion sticks is subject to many variables.