I understand what your saying. Although you cant create natural looking surfaces with props, the capacity of having a flat map of different environments allows gamemasters to build in manners to expand upon other maps used in events. If you use lets say, the geonosis map we have had forever. You can conduct a much larger scale event than what that map provides by having the map change after they progress far enough into the geonosian facility. For its map size, I would say its worth it to add something like this.