Yes, and the Anglo-Saxons once hyped up their lineage by including, among others in the
Ancestry of Woden, Noah, Priam, Thor, Beowulf, Jupiter and Saturn.
In examining what we take for granted as historical facts, one must take care to consider what agendas may be at hand.
In this case, whoever wrote the Prose Edda likely was attempting to establish legitimacy in a similar way, by creating a connection where there was none before. Writing to your audience is one thing, but appealing to the powers that by subsuming local beliefs into a canon of literary works well-regarded by the ruling body just makes sense.
In addition, the mythological canon of the Greeks...they called the Scythians Amazonian women because they had long hair, rode horses, and shot bows, so I'm kinda skeptical what their idea of a Aethiopian was.