If you are missing animated vehicles in our sceneries, it's very different if you don't see them in other sceneries, because we handle animated ground vehicles with our Addon Manager module + Simconnect, so they are real ground AI.
I don't think other developers use this method so, if you are not seeing in all the sceneries you have, are you sure you are not confusing with default ground vechicles ? For example, we have some default vehicles in Geneva but, usually we are using only our own, excluding the default ones.