>>718057019
The Darksign was a curse placed on what eventually became humanity as we know it. Humanity exists in DS the way they do specifically because of the curse, with humanity's essence being fed into the cycle of fire as imposed and propagated by Gwyn.

The very notion of even "solving" the curse like it's some kind of illness shows a clear misunderstanding on the writer's part of how the curse is even presented as an intrinsic part of humanity's struggle in having to grapple with the status quo. Removing the curse isn't like some magic cure-all to humanity's problems when its purpose is to quell the very game's namesake of the "dark soul". Opposite to that as presented in DS1 is already the ushering of the Age of Dark by extinguishing the First Flame: a proliferation of humanity's free will but also the vices that come with it, the "dark" within the soul if you will. DS2 presenting some sort of middleground alternative in somehow "solving" the curse (which it barely even elaborates on in detail nor its potential consequences) shows a clear misunderstanding of how it's applied to the themes of the story, treating it like some kind of plague or immortal affliction instead of being an intrinsic part of the push and pull between the gods and humanity.

And I say all this because it's not as if more comprehensive alternatives weren't presented either. DS3 actually presents plenty of them, with the The Lord of Hollows ending going even further with humanity gaining lordship over the flame. It even manages a solution not unlike DS2 while actually adheres to those underlying themes by way of the End of Fire ending (which is similarly echoed in Elden Ring's Age of Stars).