Matts;
You should understand that you probably could put another green site on the water where you mentioned at PD--but another green site isn't always a good golf hole. And there is so much more to consider in design. Even with a bunch of good golf holes anywhere, there is still so much more to consider. You have to string them together into a routing that has what you want to ultimately achieve into the whole--a whole 18 hole course with the kind of balance and variety you think best for that site and all the factors and aspects of it. "Connecting the dots" (keeping greens and tees near) is very important but there are many other things to consider.
More golf courses have been screwed up, I'm sure, by designers who get stuck in spots in a routing and just force things to max out something like areas on the water or particular views or whatever. It's better to just take the walk occasionally and go on to the next good hole that makes the whole thing hang together better. Forcing things into the progression of a routing is dangerous--just as dangerous as finding something you really love and hanging onto it and refusing to let it go to the detriment of the whole--the rest of the course.
Routing is a complex art, in my opinion, sometimes far removed from the individual holes, although the routing brings the pieces together, or not. When you find a long walk like #4 to #11 it's always interesting to try to analyze why that is! It's helpful to look at an aerial or a routing scheme and you might find that the reason it was done is for reasons you might never suspect--and for good reasons involving the whole!
One of the best routers, In my opinion, was William Flynn! He did a number of inside/outside routings and it's sometimes interesting to see how he did it. The most interesting one to me is Lehigh C.C. There's a long walk downhill from the first green to the second tee and many people, I'm sure, remark that that is bothersome and some kind of mistake. But with that one walk he got almost the entire front nine outside the interior back nine. Why would he have done that? There are numerous reasons and very positive ones!