Mr. Mucci,
1) Hell yes they would've. Rhetorical nature of this question notwithstanding, it was imperative that the ocean be included in more than one encounter (a la Spyglass) for both courses to successful. The site dictated to Doak and Kidd that it be open to elements and views not found anywhere in the United States. IMHO, the player's ocean encounters at 4, 11, 13 make the round at Pac. And so does Kidd's layout at 4, 12, 16.
3) My argument merely centers on one key point. The MACRO architecture of that site, I think, have could been found to one extent or another by almost any architect that was blessed enough for that site. What makes it so special is Doak's masterful use of MICRO architecture (bunkering, undulations, natural flow to individual holes) that makes Pac stand out among most other oceanside courses. In this respect, the MACRO architecture is enhanced by individual holes creating a dominating theme. Rustic naturalness combined with effective, nay inspiring, routing to make it a walk to remember. Mr. Mucci, even Gisele wears makeup at the Vicki's Secret fashion show. Even if she doesn't need it.