>>718053495
I believe this to some extent because how deathblight is handled in this game is extremely sloppy.
There are revived creatures that are harmed by healing incantations (wraiths/revenants), but resist holy damage. There are revived creatures that are unaffected by healing incantations, but are weak to holy damage (skeletons). There are skeletal creatures that are obviously too old to be related to Godwyn that are still consistently associated with his stuff, like gravebirds or death birds or the skeletal beastmen. Some of which are even supposed to be agents of Outer Gods.
The second dancing lion boss in the DLC uses deathblight for no justifiable reason. What the wormfaces are is basically incomprehensible.
One could interpret that deathblight is older than Godwyn, but then they'd have to explain why everyone thinks it came from him, then.
Godwyn's entire thing is extremely underdeveloped and either was coherent once and was then made incoherent because too much square shaped stuff was jammed into the round hole of TWLID, or it was just always a grab bag of all weird and disconnected things.
>>718053301 (OP)
Maliketh had to stay physically locked way in Farum Azula with no contact because if he got out, he'd hunt Marika down and kill her.
What about Guraanq in Dragonbarrow? He's really not exactly the same thing as Maliketh. It is similar to how in the Ranni questline you meet the Baleful Shadow and Blaidd in two different places at the same time, and one of which is way stronger than the other. Gurranq is to Maliketh what Blaidd is to the Baleful Shadow. The more 'sane' and 'repressed' persona that exists parallel to the other who is more of a sleeper agent for the Two Fingers.