Sundering stuff established in the Q&A

[Alleluia]

- In other words, Venat has gained the information she was confused about lacking before about her future self’s mindset. Namely, the picture we paint of the Sundered future, and Meteion's report. She decides to allow the Final Days to happen as a test of the Ancients, in the hopes that they will respond in what she views as the correct way, reflecting her view of using suffering to grow one’s internal strength and the ability to find “everlasting light.”

Regarding the bolded bit, how does Venat "allow" the Final Days to happen? How could she have stopped them exactly? Meteion was out of reach, and even if they got to Ultima Thule somehow, they'd likely have failed confronting her. The only way to prevent the Final Days would be to summon Zodiark early and get him to reinforce the aether field around the planet before the nihilism wave hits. Which would involve sacrificing however many lives were necessary to have the power to do that, which in turn would require her to convince people it was necessary in the first place. She was the only one who remembered our story and the true nature of our existence, so good luck with that. Not to mention openly disclosing everything could very possibly have made Hermes an enemy again and he could have jacked up preparations for Zodiark's summoning in response.

Venat did not "allow" the Final Days to occur. She didn't have that control. When they lost Meteion and the other two lost their memories, she could theoretically have made everything public knowledge and tried to convince people the end was nigh. But that might have borne no fruit at all, or even possibly made surviving the Final Days (of Amaurot) more difficult, so it would be a gamble. But either way, the Final Days were happening.