JES II,
They certainly seem to get your attention.
Whether the eye is inherently drawn to them, or notices them secondarily, in conjunction with the intended target is a good question.
I would imagine that penal features were meant to be seen as a red flag, a force/feature to be reconned with.
From a playing perspective, I'd have to say that intimidation, as one stands ready to hit their shot, is a big factor at many holes at NGLA and other works of CBM-SR-CB.
I certainly received that message on the 11th tee at Mountain Lake.
That bunker gained instant recognition and respect.
When Mike Sweeney hit into it, he faced a steep bank of grass, ontop of which the green sat.
But, the insidious element was that despite appearances from the tee, the front of th green runs AWAY from the bunker, making it exceptionally difficult to get a recovering bunker shot anywhere close to a hole locatioin along the front edge of the green.
The tactical signals sent to the eye are not deceptive.
They warn of impending danger and the consequences of folly.
It's a hole where course management, along with the honest assessment of one's game, merge marvelously to form an exciting, fun challenge.