Ron,
I think you and/or your friend Kevin is right about the visual hazard.
But, with the advent of modern day technology, that's an illusion that's harder and harder to pull off.
The first time I played Bayonne, I stepped up onto the tee on # 4 and was intimidated.
It looked like a bowling alley with deep fescue for gutter lanes and beyond.
The wind was blowing, the left flank horizon obscured by dunes of tall grass, ditto the right side.
Now, I'm a fairly straight and consistent driver, but, when I stood on that tee and searched for my aiming point in the fairway and beyond, I was intimidated.
On subsequent play, while the visual is still there, I now know that there's tons of room right, behind an obscuring dune.
But, today, the tech oriented golfer can just pull out his "device" and see a bird's eye view of the entire hole, allowing him to override the visual deception that the architect was so successful at.
Golf and golf course architecture lose out when artificial devices are permited.