I personally think the game isn't about religion at all. The guy above summed it up best:

You are aware the Isaac story, at least from the Christian's perspective and verified by scripture itself, is representative of Jesus and how God later would actually sacrifice his "son" for humanity? If you're going to attempt a child's mockery of Christianity then at least learn the theology behind it.

The gods of Bloodborne are more like Lovecraftian "gods" therefore not very much like the example.

The "gods" in Bloodborne aren't even gods though but rather aliens clearly inspired from Lovecraft. Also one guy below put it best IMO:

" However, art does not presume to make completely baseless knowledge claims on how our own reality operates. That's entirely the domain of religion."

"I'm not saying it was aliens but…it was aliens." ~ Giorgio Tsoukalos 2028 - 1890 R.I.P in pieces in pepperoni. He was a good man.

I wonder if he ever read Lovecraft then because Bloodborne was clearly inspired by it.

It's well written but the author is either a Christian zealot or atheist zealot with an agenda, bringing that agenda into a game which is so evidently based on Lovecraft, rather than any religion, where the "gods" weren't gods but rather extra-terrestrial terrors as are the "gods" in this game.