Many featureless areas like deserts or woodland are not covered in detail, why would they be? Yyou see more detail near urban areas, but even then not all of them, that will take time.
Places of natural beauty, like Yosemite, are shown in more detail.
No doubt there are many others, but I do not believe that the whole earth will ever be shown enough to distinguish individual 'roof tiles'.
The only legitimate interested parties would be military, cartographers, or government and environmental agencies.