Personal opinion here... Would be very helpful if the map displayed under AncestryDNA matches "Map and Locations" was full width on the page, perhaps by moving the "Shared Birth Locations" down under the map next to the "Birth Locations (Expand all)". Both "Shared Birth Locations" and "Birth Locations (Expand all)" use popups anyway. That big white area under the map is a lot of wasted screen real estate if you are on a larger desktop. If on a smaller laptop, having the shared birth locations visible without scrolling down is perhaps preferred.
You can hit the expand button on the Map, but often these three extra steps (expand map, reorient yourself to the new displayed map, dismiss the map) would not be needed unless there are too many pins on the map. If you are clicking through tens of shared DNA matches looking for matches in a certain area, these extra steps really add up.