If you want to go with the very hermetic, strictly lore approach, without playing around with some wiggle room for justifying possibilities (so like at launch), then sure. But clearly that closes the doors for any rich variety for character creation, in terms of wide range of skin tones and ethnicities. That said, we can have all these varied ethnic choices and still keep some basic feel and lore taste of Middle-earth - through many different origins and ideally some more options and some specific cool cultural features (tattoos, paint) if they went that route and chose to make those (they didn't for now, sadly).
Consider this, for the strictly purist lore accuracy - you would be able to choose Far Harad origin, create Far Haradrim woman from some clan you imagined, valar up to lvl 140 and participate in some of the Umbar content and questing in adjacent future areas, set at the time After the Fall. How is that for hardcore lore accurate?
Possible. Would have been cool to roleplay sometime in the future. But not without those origins
Feels kinda underwhelming and invalidating if they aren't there because makes you feel kind of like the devs wanna just invalidate their own game and own rich lore