Together with the airfield at Port Stanley, used by Argentina (as Puerto Argentino) during the war to launch Pucará and MB 339 sorties, this allows mission creators to recreate missions from all phases of the war. There is time for improvement, of course, as this is an early access release, but that is the current state of things. While Syria was developed to be better optimized with many additions to the map over time, the early access South Atlantic map has launched with an overall lower quality in textures. This is unlike the Syria map created by Ugra Media which launched in early access with an overall higher quality which was well known for being difficult to run on lower-end personal computers. However, flying closer to the earth reveals a noticeable decrease in the image resolution of the land.
This map does in fact look great from the high altitudes that fixed-wing aircraft normally operate at.
In promotional content leading up to the release of the South Atlantic the beauty of the terrain has been shown in both videos from content creators with early access or promotional screenshots from its developer. Though this is not mission editor related, the overall look of the map being a consistent point of attention is something that should be addressed.