Yeah, this is a troll thread, but there's LORE being discussed and I'm demonstrably incapable of shutting up when that happens, so...
It's worth noting that map you embedded is literally just the northern part of the world... and not even the entire northern part. We have the New World to the west of Aldenard (much like you have the Americas west of Europe in our world), which seems to bear out some inspiration from the real world, yes. But there's also a whole giant continent to the south of Aldenard: Meracydia. And from what we know of Meracydia, I don't think Antarctica is a good analogy! (Though, to be fair, Allag did supposedly leave large swaths of it something of a wasteland...)
So while there's some obvious inspiration that's taken from the real-world map in laying out the map of Hydaelyn—and I admit, I've wondered before if there once was a landmass where Europe would be in what is now the Northern Empty, the expanse of ocean with only a few scattered islands, and it was destroyed in a previous Umbral Calamity—I don't think there is a 1:1 mapping... nor do I think there's really intended to be anything remotely like one.
Sure, you could argue that Thanalan and Ul'dah take some inspiration from Morocco, for instance—and maybe a little bit from Egypt?—as well as pulling from Middle Eastern folklore in general.
But Gridania seems much more the "mysterious woods" of European tales (even moreso back in 1.0 before the aetheric imbalance of the Calamity robbed the elementals of some of their powers, when they were still this ominous, ineffable force that could make you vanish with a thought if you provoked the greenwrath), drawing from the same sort of folklore that J.R.R. Tolkien took inspiration from in creating Lothlórien and Mirkwood.
And I'd argue that Limsa is almost like a Mediterranean island town (I wanna go back to Santorini...), while Vylbrand in general feels kind of like the Iberian region of Spain.
Dravania is downright Scandinavian, what with the names the various dragons have.
Coerthas used to strike me a bit like Crusader-era Europe in 1.0, specifically the Gothic period starting in the mid-12th-century. (Now it's like... Crusader-era Europe with a constant Russian winter. THANKS BAHAMUT.)
Gyr Abania/Ala Mhigo feel a little bit like parts of Turkey; the Peaks remind me somewhat of Cappadocia, while the Lochs strike me as a little bit like Pamukkale.
So I don't think Eorzea is meant to be Africa, much less all of Aldenard being Africa. In fact, I think the Eorzean cultures actually pull from a surprising variety of places; the classical China/Khanate Mongolia/isolationist Japan -> Doma/Steppe/Hingashi mapping was almost disappointing to me in comparison. Yes, they probably pulled from various real-world locations, but most writers/artists do that; pulling a little bit from a real-world location means you can make something feel a bit more grounded and cohesive, recognizable to readers in our world. (And makes it easier to find art references.)
And while you can maybe argue that Eorzea serves a similar storytelling purpose as a 'dark continent' or 'unknown land' from the point of view of the Imperials regarding Eorzeans as 'savages', I feel like trying to say it's intended that way is somewhat subverted by the fact that Ilsabard is covered up by clouds in all of the maps we've seen, making it a literal 'dark continent' within the narrative, as no one seems to really know what happens within the boundaries of the Empire, and only the bravest Eorzeans dare venture past those borders.