http://www.centralparknyc.org/things-to-see-and-do/attractio...
but it does look somewhat different. There are however a few other playgrounds (103rd st., Ancient Playground) on that list you found that have similar features.
It looks to me like he's lamenting the loss of a certain kind of vision in modernist playgrounds that were less about swings and slides and more about stimulating creative play. I don't know a lot about it, but you can probably dig for it. What I'll say though is that while the modernism might have been lost, the adventure has not and new playgrounds in NYC get better and better with every new or rebuilt one.
