I think there is more to the tale(at least I hope there is), but not that Hydelyn is evil so much as misguided, reality apparently broke from her actions. Even if its the world that we are living in, reality's still busted, can't say "oh we'll leave it like this, its fine" Something is clearly missing from this between the fading hydelyn and Derplander's presence, and "Ascian lies, everything's ok." doesn't quite match it up, imo.