Jerry,
No I don't think there is too much width, especially on those two extremely well designed golf courses. There is width for the sake of width, but not at Streamsong. I suspect you will see similar width with Gil's course. However, as one has to admit, there is a cost and it is in part reflected in the high green fees. Your local muni would struggle to survive with Streamsong's maintenance budget which is why design is almost always impacted by maintenance budgets (see the other thread on this topic).
Mark