I consider that all TP should be revealed according to the region you are in and according to the civilization you use as I already mentioned here.
For example, Europeans can see royal houses, Asians can see native Asians, etc.
In the case of the natives who are in different continents, the map would be taken into account instead of the natives, for example the Jesuits who are also in America. So for example the Incas could see their position, but not a European civilization.
As you say this assumes local area knowledge of the “host” nation.