Adam:
After years of consulting, I believe that you can usually find a quote to help support any halfway reasonable opinion, if the architect was prolific enough.
And I also know from observation that the great architects were not afraid to break their own rules. National has some fairways that are WAY wider than sixty yards, and they were even wider back in Macdonald's day. There are a lot of things at Crystal Downs that go against MacKenzie's 13 principles -- the beautiful native roughs for one.
We are not going to build something which I think would be out of character for Macdonald, but that doesn't mean we're reduced to a paint-by-numbers approach, because Macdonald was not so constrained.