Make it so different structure maps do not point towards the same structure

With the introduction of the new abandoned camp and new structure maps, I make my humble request: Make it so two or more structure maps cannot point to the same structure. This is something that happens a lot with treasure maps, for example. In the same ocean you can find sometimes up to 3 or 4 treasure maps, most of the time pointing to the same treasure, maybe another one if you are lucky. With how hard or annoying some of those maps are to find (Ehem... ancient city... ehem...) it would be astronomically frustrating if you found more than one map only for them to point towards the same place. Also, some maps like the treasure map could have its ratiry adjusted to account for this new feature, because I think the player will find more maps than treasures there is. The map, once generated, should point towards the closest never before discovered by another map structure. The requisite for the map to point towards an structure would be for that structure to never have been pointed towards by another map.