Neighborhoods with tones of fake buildings looks dead...

I find it kind of odd in a game that is heavy on loadscreens every time you need to visit a neighbor lot (likely done for optimization reasons in the middle of gameplay), they still fill in the void with fake buildings that you can't even visit. Like what's the point? It's easier to plop a building without any sort of interior decoration or Sim creation yeah, but it sure as heck is lazy and bad for gameplay.