Joe,
The funny thing about your examples is that they are both basically flat sites (TOC and TPC). For the most part, routing is finding, features are architecting, with some emphasizing finding features a bit more than others.
As the CP example, they found a great natural hole, but then added Mac Style bunkers that he used across the rest of the course (and most of his courses) I know I can find great natural holes, at least in my definition of broad natural contours providing a nice hole. I don't worry about a lot of the micro contours (and really, they are rarely present on the typical site, or I would) but then design the features according to what I think is good design for modern golf, more than worrying about protecting contours in any exact fashion. I do limit construction by letting the contours suggest a general design pattern, but would never leave, say a 6% sloped green if that was natural.
Most architects probably have a bit of both, along a continuum. And many are better at routing than feature design, or vice versa. Even the good ones, who have talent in both areas lean one way or the other, from perhaps a CC to a Fazio, who corrects anything he doesn't like.
I am guessing the Mike Young's, Ian Andrew, and Jeff Brauer's of the world all lie in the middle of that continuum somewhere, closer to the middle, but maybe somewhat separated. And, due to construction technology, all us moderns would be further to the construction side than the finding side from Old Tom.