Well... I don't know what to say. It could be a good, or a bad thing...
But, at least I know that Bethesda didn't stole this idea from Bioware, after all Skyrim plot was being formulated since Oblivion was released.
I'm sure the basic concept at least has been around a lot longer than games have. And if these verses are anything to go by I'd favour Bethesda's interpretation of it, personally.
Looking at the less obvious implications, I'd guess that those doing the praying aren't taking Dovahkiin's presence for granted, and that his existence and characteristics are just as questionable, mysterious or mythic as the dragons', other than the fearsome power they seem sure he has.
If Alduin has been unshackled by the end of the Septim line, and plays the role either of the main villain (for want of a better word) or an over-arching cause of the game's conflict, perhaps the other divines represent more of a grey area? What role would the Daedra play in such a storyline? Mortal-divine conflict and mortal-mortal conflict seems assured, but I wonder about divine-divine conflict.