If you want a story about heroic characters battling evil, this isn't the show. I don't think it's a spoiler to say that Sauron wins this one due to the flaws of the men, elves and dwarves--that's the whole point. Then there's the rallying and they all come together and manage to spank him in a big battle. At least, until Bilbo finds the One Ring, centuries later. That's the story.
If folks are looking for a story about heroic and competent heroes standing against evil all competently and stuff, maybe the "How Sauron corrupted the weak, flawed races and achieved dominion over them" show isn't the one you're looking for?
I kind think folks need to buy into the premise. It's a show about how the events of LotR came about... and that wasn't due to heroism and competence. If that's not the story you want to hear, then this really isn't the right show for you.
Also, why does everybody want their protagonists to be Vulcans? Shows featuring only perfectly logical competent people sound pretty boring.