The context has been altered. Pray they don't alter it any further.

… but seriously, Venat's 5.2 scenes establish that Zodiark is a stopgap that won't keep the Final Days from returning forever, but because of their habit of using the word "Darkness" as a catch-all for negative things (despite that very expansion establishing what Darkness as an elemental force actually is), it wasn't particularly clear that the "darkness" Hydaelyn was meant to keep in check wasn't Zodiark Himself. That sort of vagueness is probably what led to a lot of folks to declare that Zodiark was pure evil even as Shadowbringers' story took great pains to make that not the case.

I wonder if the distinction between "Darkness" and Actual Darkness is more clear in Japanese.