It is kindof amazing to me to remember all of our playground equipment sitting on concrete pads.... What were they thinking?
And to some degree I find this article to be a bit over-reactive.... They have cool big toys at all the parks I go to, neat obstacles, net climbs, tire swings, slides and such, some of them much cooler than the simple playground equipment we had. And the bright idea of putting a pea gravel or sand bed down to fall on was late in coming.