Regarding the area the series is calling the Southlands, from what I vaguely recall of the map is as
Tar Elenion was directly east of Mordor. So, it looks to be where Gondor would later be established.
I've got no problems with this depiction as I would say it could be from the Elvish perspective of being south of Lindon/Eregion. Boromir is introduced by Elrond as:
Quote:
"Here," said Elrond, turning to Gandalf, "is Boromir, a man from the South."~The Council of Elrond
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In Bree, I think it's Butterbur (it may have been Aragorn) who noted there's a lot of strangers coming from the South. I've thought of them as just being people from Gondor, trying to escape the brooding war. I think there may be some spies from Saruman mixed in, but it seemed like there was angst among the Bree-landers about the new travelers from the South.