What if the other others are higher ancient beings,that have gone thru so many iterations that they have evolved or earned their place at the inner temple.
Remember when Cindy and the children werre taken from the tailie group,it was said that they were pure. When I saw her there I thoght she looked as though she belonged there. I also thought it was funny thst she was serving them food like a stewerdess and the kids were her little cart.
The Black Rock and Oceanic 815 were probably ways to get there. Jacob may have been there all along to nudge them in differents paths.
Maybe our losties have to go back and try again at redemption and when they finally get it right they can come home to the temple.
Thanks for reading :o)