I think a big part of the problem is greedy golf pros setting tee times a lot closer than they used to be. The Matt Zeh article you linked to mentions as much. e.g. tee times used to be spread out 10 minutes or more, thus allowing ample time for the group ahead to play up the fairway far enough so that the group behind isn't breathing down their necks all afternoon. Now, a 7 minute spread (or less) seems common. This is the equivalent of rush hour traffic on the course.
I think a big part of the problem is greedy golf pros setting tee times a lot closer than they used to be. The Matt Zeh article you linked to mentions as much. e.g. tee times used to be spread out 10 minutes or more, thus allowing ample time for the group ahead to play up the fairway far enough so that the group behind isn't breathing down their necks all afternoon. Now, a 7 minute spread (or less) seems common. This is the equivalent of rush hour traffic on the course.