Seems they've scaled back some of the detail.
No more dat grass.
Hmm, the grass' color before popped out more, yeah, but that seems more like an artistic choice rather than a technical limitation (besides the obviously missing shadows). Might just be another type of grass in that area. Maybe the grass is... greener on the other side.
Okay, your post really made listen to The Grouch & Eligh's No More Greener Grasses now, haha.