I don't consider grass, fake or not, fountains and added seating a concrete wasteland. But I think more trees are needed. There's just something about the FP+ fireworks viewing fake grass/park that's missing and it's trees. Instead of little shrubs they could plant a tree or two. I know it's for 'clear views' but trees are clearly what's missing.
And honestly, the hub needed to be expanded. Did they do it all the right way? No. But it's far from one of the worst things they've done, IMO. Parts of it are really nice. I want to see it *all* done but I like what's there.