Rich:
I know exactly what you mean and I'm also considering Wayne's point about MacKenzie's bunkering style being a bit more naturally apropos in a really dunsy, sandy site like Cypress.
But to answer your question---no, I don't find it over the top at all. Over the top from what? From what a completely "naturally" formed bunker might look like? Sure it's over the top or at least different from that model but the fascination of MacKenzie's type (of bunkering) is it was some of that but also some of the most interesting "stylizing" ever known in golf course bunker architecture, in my opinion.
We, on this board, I think, sometimes get way too carried away with this whole "natural" and "minimalist" idea and model. Is that type of architecture interesting in golf? Of course it is, immensely so, but it probably wouldn't be so much if every single golf architect attempted to do it the very same way.
MacKenzie was a real "naturalist" in golf archtiecture in many ways but in another way he surely did apply "Art" principles (landscape "art" or architecture principles) to his golf course architecture. Those "Art" principles include "Harmony" "Proportion", "Balance" "Rhythm" and "Emphasis".
MacKenzie, was excellent in the area of scale, in my opinion. And in the "art" principle area of "Emphasis" (at least as that's defined in C&W) I think MacKenzie got into a really interesting wrinkle in that applied area (looks hard, plays easier). In other words, he didn't exactly draw the golfer's eye to the most important part, if that means where the golfer SHOULD hit the ball.
I feel I've never fully understood the meaning of it but Max Behr made a most interesting remark (he certainly wasn't the first or only one to say this about art) about what the "Art" of golf architecture should be. Behr said it should essentially be an art of 'interpretation' and not an art of 'representation'.
If Behr meant by that what I think he meant, I'd have to say MacKenzie, in my opinion, may've been the best at it ever. And that means a certain degree of "stylizing" (interpretation) that to me, anyway, is just architecturally or artistically fascinating.
Is it somewhat of a paradox to the attempt at the look of total "naturalness" as perhaps the Boers were trying to create with their military trenches (a look which the Brits would not notice the land had been touched?). (Also, we should never forget something else that MacKenzie very much noticed and mentioned and filtered through his thinking as to its effect regarding camouflage in military trench-making by the Boers. That is that they not only made military trenches that looked exactly like Nature itself but they also made extremely artificial looking trenches the way the British did. The only difference was the British military were in their extremely artificial looking trenches and the Boers were not!
).
Of course it's somewhat of a paradox. So what? I guess if golf course architecture really is to be considered an "art" form simply attempting to create something that looks exactly like nothing at all had ever been created by man may not ALWAYS be the idea or the desired result.