Jim has been keeping away deliberately from the origins of the White Court, whereas we have been given those of both the Red and Black Courts.
I find that suspicious.
Well we might get more in 12 months or in the courtship of Lara.
But yes the various different local gods bordering on spirits is another example of interpretations of the Olympians.
Romans converted a bunch of Gallic Sun Gods and named them 'Local Apollo' or Apollo and the region of Gaul.
In Iron Druid both Roman and Greek gods are Seperate Pantheons both inhabiting different planes of Mt Olympus.
But yes. Greek Gods get a lot more play in mythological retelling than their Roman counterparts but the Roman counterparts ruled the Mediteranean for 700 years or so.
Personally I think they're just putting on different hats the way Vadderung does.