Tom MacWood,
The principle of the Redan can be used wherever a long narrow tableland can be found or MADE.
Curiously enough the Redan existed at the National long before the links was thought of. It is a perfectly natural hole."
CB Macdonald-1914
The basic ridge or tableland was there, but the hole was
MADE, read, constructed and manufactured.
Despite your mis-interpretation of CBM's words, that hole was
MADE, and not sitting there naturally.
One only has to walk around it to see how it was constructed, but, you've never done that, so you wouldn't know what you're talking about with regard to the structure and construction of the hole relative to the surrounding land, would you ?
SPDB,
CBM indicated that they did not have enough money for a clubhouse, hence they wanted to start near the Shinnecock Inn.
He also stated that he wanted to fit the best of his template holes into the land.
The Shinnecock Inn burned down in 1909.
In addition, one would have to look at the vast open space between the current 18th and 1st holes, and wonder why that land, land with a view of the water, wouldn't be used for a hole, choosing instead to use the current 1st fairway ?
Why, when the outbound and inbound holes run so close to each other, would he suddenly leave this huge gap, void of a golf hole, if not to reserve it for a substantial clubhouse ??
I'm starting to like my theory even more