Originally Posted by
Theodric
It wasn't her primary motivation but that's what she referred to herself as, after lying repeatedly about the circumstances surrounding the downfall of her people, leading others to falsely believe that Zodiark was an evil, power-hungry entity and inflicting untold suffering upon many individuals without their consent. Furthermore despite fawning over the player character's memories she still robbed her own people not only of their lives but the connections they had to loved ones as well as their memories.
It's more explicit in the French localisation but Venat herself, as Hydaelyn, admits that she can't really think of an excuse for what she did. Though in the English localisation, Venat concedes that there was no kindness or justice in the act.
In other words, people are absolutely free to consider her to be monstrous and treacherous if they see fit. As many more would, I suspect, if it were their loved ones that had been screwed over by her actions.