Pat, the revetted bunkers, the fairness issue of having them built to gather a wide surrounds of balls bounding near them, the issue of often needing to play away from the line of play to get out of them, and the look of them in their proper environment of links firm, sandy, hard ground will not catch on for the retail golfer in the U.S., at this time. But, I speculate that it could catch on with the botique, descerning golfer, who will/can pay private club money, at places like you mention on either coast or population center.
With the niche small group afficianados like here on GCA.com, I believe there is a demonstrated small private connoissuers market. The only way that translates to retail is by emmulation. The same way the Augusta syndrome creeps into the thinking of the retail golfer, or even the desired ideal conditioning goal of the private green committee (in many cases) the issue has to be one of trend setting. The retail golfer has to be conditioned and trained to think a certain way.
This also applies to the trend and conventional wisdom created by the trend setters to the archies. They only respond to the market. Architects would design revetted bunkers if they were accepted by the retail golfer, and requested by the developers. But, that ain't going to happen without some serious changes in the conventional wisdom, and what the retail public is stimulated into thinking is desirable. If they were slowly introduced to the vaguaries and uncertainties of the links bounces, the placement and gathering design of revetted bunkers as being part of the game as a mentality to embrace, then slowly there could be a shift in retail golfer perceptions. But not at this time... I don't think.