Exactly this. I also noticed I enjoyed the ruined sites way more since not everything is explained, and everywhere you look is something else to notice, another mystery to explore. For example, in the Priory, there are large piles of stone, covered in dirt and grass. Some of the stones were obviously cut and finished. It was a large stone building of some sort, unexcavated and waiting to be explained. That sort of mystery is just the best feeling.

Also, the larger outer wall had no known purpose, but it was 3 acres in size, with 5 towers guarding it. Only sheep graze there now, but something was important enough to put a wall around it. More mystery.