I do want to say that I think it's actually a little lucky that this particular figure is the one they had to double-dip on, just because of the name. Two entirely separate Ifrits would have been very suspicious, just like two separate Shivas or two separate Bahamuts. Meanwhile, Alexander is a fairly normal name even to modern people in 2025; it feels completely understandable that the name just happened to crop up twice.

...but in thinking about it, it might be exceptional that of all the names to crop up twice, it's the famously Greek one. Two civilizations in the game have a tendency to tap into Greek, but Sharlayan basically only uses it for place names and descriptors; Greek names for people and figures, that's squarely an Amaurotian thing... who happen to be damn near the only civilization that could've conceivably left fingerprints across shards.

I hate the notion that we might have more Ancient Time ahead of us, and I really hope we don't. But I'd think that, if the writers were ever inclined to write up a link between the primal and the city, it'd trace back to that.