Prairie Dunes was indeed, way ahead of its times, as was Sand Hills.
The 2nd here is a very, very unique and strong hole (a 4.5) and one that helps define the brillance attributed to Sebonack. The "open field" exposure to the water and the prevailing breeze (SW over the 18th and across the 2nd) helps to stiffen an already testing four par. The green is great and certainly demands a tough second shot, but is that sufficent reason to hate it? Ignore par and play it as best you can. It's really a ton of fun when you take that approach.
The pair of trees don't really come into play other than to present framing. I don't really see this hole bear any resemblance to PD. I think it's green placement and difficulty strikes me as much more similar to some of the longer holes at Ballyneal & Stone Eagle with a distinct Doak-style flair.
Matt, I think the much harder pin is on the far right, tucked into the corner...impossible to shape a very reliable shot into and NO bailout area (found on the left side).