I would worry more about the writing than the color of the actors. And sticking close to the source material, in tone as well as narrative. Tolkien left plenty of Second Age source material in the Silmarillion, Unfinished Tales, History of Middle Earth, etc. Son Christopher pulled most of this together after his father’s death, but it’s canonical. The showrunners need to be kept on a very short leash. I’m ok with mixed race elves as long as they speak Sindarian without an accent.
I agree but Amazon seems to be selling this as, "Look at our diverse cast! Suck on it, Trumpers!"
And let's be honest. Does anyone expect little more than a nod to the source material? The wokesters running the show aren't going to dig deep into Tolkien.
I'd love to be proven wrong. I get it. It's 2022. I don't expect all white casts. But at the end of the day, all I really ask is to be entertained.