Ron,
I feel "jagged bunkers" are only making very strong comeback. C & C and Tom Doak, as well as all the others, are not re-inventing the wheel. These bunkers were made by countless architects in the early days, but they have been transformed and formalized over the years by god knows how many superintendants/architects/course committes/etc.
I personally find them very attractive, if the setting is right for them. However, I also feel we will see more and more of them. With the pressures golf courses have regarding water use, I beleive new and old courses will start to look a lot more natural and less manicured, which will fit with this type of bunkering.
YP