I really appreciated this kind of thing when they walk around the place, such as after meeting Aerith and on the way to Wall Market, (SPOILER)when they have talked about seeing the sky and how that's because a part of the plate fell onto some low population area, and then again seeing the destruction just before the playground made it way more notable. There's also the talk on the way to meeting Biggs for the second major mission (SPOILER)where they talk about the sun lamps and how they operate, and how turning them off impacts the people that was interesting too. Little things like this really add a lot to the game.