Craig,
It may be that the fairway restoration is the next phase. I mean it is a big name architect, and you can't go wrong hiring the big names, no? Maybe you know more detail and in fact this is not true.
While the angles is one way to judge fairway width, sometimes wider fairways actually can bounce and roll you into trouble, so the intent of added fairway does not have to be for preferred angle, but rather fairway becomes a hazard. Despite the enormous fairway widths in places at NGLA it is most enjoyable, maybe it is easy for a good player, but I found it enjoyable, and I found the fairways to cause more problems than if the area were rough. Look at your example. If fairway were restored up tot he bunker it is possible the wayward shot would be carried into the bunker, or off to the right where it appears the terrain could be tough. Possibly there is a preferred angle from this area therefore if someone is playing to this area for the best angle into a pin they must be careful, a careless shot could roll them into trouble. But it does not just have to be a preferred angle to justify fairway, fairway can be placed as a hazard, or as the conveyance to a hazard or unsuitable terrian in terms of sloping lies, or srathcy, rough terrain making for bad lies
A well designed irrigation system, proper turf grass selection, and the rough can be real, unpredictable rough. Rustic, clumpy, dirt , all of these varying and unpredictable conditions can be attained if properly planned for.