JJ,
Interesting points, all. I have always liked the templates, too. As noted, less strategy on a par 3 hole, so designing holes that feature an unusual "concept" shot make sense to me. The reverse/canted slope of the Redan, the Biarritz, etc.
I have never thought the Eden concept is that great, master bunker front, with secondary bunker to keep you aiming to far left? Let them choose to aim away from the green without visible hazard (although a sneaky slope away from that area is neat) It is better than bunker right/bunker left of the typical green.
The short is not a bad concept, big green, 2-4 smaller targets within, but close to a no options, dreaded "straightforward" par 3 where the goal is to avoid bunkers on all sides. I guess if you are going to demand accuracy, a short par 3 is a logical place to do it, and the larges, sectionalized green is a practical and two step way to do it (hit green first, then hit right part of green, with ridge, etc. dividing it, plus fewer ball mark problems)
Lastly, in this day and age, I think the Biarritz works better on a reachable par 4 or 5, where there might be a running shot coming to the green. Yes, over 200 yards you might get a fw metal or long iron running shot, but seems less likely.