At zoom levels where buildings aren't loaded, they're treated as casting no shadow, which causes the site to hugely underestimate the amount of shade for dense

At zoom levels where buildings aren't loaded, they're treated as casting no shadow, which causes the site to hugely underestimate the amount of shade for dense urban areas. I can see how this would be a hard problem if you're doing the shadow rendering on the client side, but is it something that you have thought about trying to solve?