Well in a sense one cannot make any statement about "Divinity", at least from the Buddhist perspective. All I can say is that anyone who is sincere in whatever religion they practice is going to make some progress, having a clearer philosophical view helps but it isn't entirely necessary. As to our "human weakness", indeed there is a kind of grace, the "mindstream of the Buddhas" or whatever you want to call it, ego cannot overcome ego (though even the duality Spirit-Ego is just another duality). I find the idea that we have to keep coming to back to work on ourselves until we achieve the goal to be vastly less cruel than the notion of condemning people to eternal(!) suffering for believing in the "wrong" doctrine.
Of course there is also the idea of the Bodhisattva, that true happiness isn't found by abandoning the human realm or going to any kind of paradise, but in staying here and struggling to be a force of compassion.