I think the problem is that none of this is even alluded to in the game's story. There's nothing expressed to make you curious about the deeper lore, unless you are inherently interested in it. As OP said, it seems generic at a glance.
Throwing in bits and pieces to peek people's curosity would do some good imo.
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That much is true, but it's a lot like Dark Souls did. You learn almost NOTHING about the worlds, unless you delve into the mythos.
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But Souls hints at it or at least gives signs that there is something more. Like Ceaseless Discharge, where people thought it was odd that he looked sad and didn't fight you till you took the clothing. That was the game itself pushing people to be interested in the deeper bits of it's story. It's also more likely players will read into Souls lore considering it's intertwined with necessary descriptions. The key to Havel or the Depths is a good example, where when you look to see what they are used for you are pretty likely to read the lore bit as well.
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Same with Destiny, really. Considering it flashes the "Grimoire Unlocked" each time.