I mean, it's clearly a very abstract representation based on archaeological data. There's no people or animals in the streets, which wouldn't have been the case even at night let alone midday, and all the houses except the famous landmarks are basic geometric boxes. It's not intended to be a video-game like living city, but rather a semi-immersive virtual museum.

What you're asking for would have required an entirely different budget and likely would run counter to the point of the model. It's not a simulation.