There have been a lot of new stunts built up there in recent years, most of it on new trail offshoots, or at least to the side of the old trails. It almost seems like a new generation of riders has come along to put their stamp on the area, while some of the "older" riders like me aren't riding in there as much.
We used to do a Sunday morning group ride in there that was absolutely the weekly highlight of my week. But people move on (in more ways than one).