A lot of this as they were explaining in the video, there are three different layers to consider and the info comes from different places as well as the team building models to fill in.
There is much more going on then simply taking Bing data and it just appearing in game.
Plus some areas Bing does not have and they then need to make it.
Toss in the fact the game uses 3D modeling for cities and Bing only 2D and well… it’s a work in progress.
I am happy that they have a dedicated team to work on modeling of the world. Things are only going to get better for us and that is great news.