The main reason you don't see long, linear routings like that often is that we don't usually work on long, linear sites -- that, and many client's fondness for returning nines, which would ask you to put the clubhouse in the middle of the string.
The Loop is basically routed along the outer edge of the property at Forest Dunes, but it would have been too short if I had just gone out to the end and back, so I zigzagged a couple of times to get there. In the end, that saved the design, because the changes of direction provided a much greater diversity of green settings between the Red and Black courses: approaching the greens from 90 degrees apart is a lot more interesting than approaching them all from 180 degrees apart.