Tom MacWood,
There is a wonderful picture of the 18th at Inwood, hanging in the clubhouse, taken when Bobby Jones fired a 2-iron into the green to win the 1923 US Open.
The picture clearly shows the 18th green going right up to the water, as does your posted photo.
I was disappointed that Tom Doak didn't restore that feature when he undertook the Inwood project, especially in light of the historical significance of the hole and green in American golf.
Now, perhaps Tom Doak proposed a restoration of the green right up to the water, but the members didn't go along with it.
I'd certainly like to know whose call it was, and I'd certainly like to see that feature restored. It places tremendous pressure on the golfer when forward hole locations are used, versus today's version.
Perhaps, Brad Klein can provide some historical insight since he grew up caddying there, and Tom Doak can provide some info with respect to why the green wasn't restored to its 1923 configuration.