One hopes that with the airing of the next to the next to last LOST episode, no one will again fret about the creators of the show suddenly turning the show into a LORD OF THE RINGS-style good vs. evil contest.
At most, "Across the Sea" gives viewers a vision of the powers behind the island-happenings as being pretty much like the castaways themselves: intermixed with elements of good and evil. All three of the characters-- Jacob, the Man in Black, and the woman I'll call the "Unmother"-- perform acts of evil for reasons that can be viewed as partially good. The Unmother commits murder and deceives her adopted sons in order to protect a treasure from impious mankind. The MIB ends up killing her, but only because she foils his plans to escape the island. Jacob assaults his brother and consigns him to a living death, because of MIB's murder of their mother.
But then, this vision of interwoven good and evil was pretty much the same as what the creators presented through the main characters, so I never quite understood this Tolkien-phobia. Or maybe it's a King-phobia, since I've seen various sources cite Stephen King's THE STAND as an influence on LOST.
I haven't read THE STAND for years, so offhand I don't know what aspects of the show the novel is supposed to have affected. But although THE STAND's moral opposition is fairly simple-- much simpler than what one finds in the worlds of Tolkien or, for that matter, J.K. Rowling-- I can't see why some fans of LOST had so little confidence in the creators who gave them such a complex new playground.
Maybe that's the disadvantage of their not being-- "men of faith?"
Or at the very least, being people a little too afraid of being considered "suckers."