How is this still in debate? Objectively speaking, Venat kept critical information that sent the Ancients to certain damnation due to a judgment made on such an egregious show of narcissism that I wouldn't be surprised to find out she goes home everyday to her perfect lover: A mirror.

Whether the ancients could do anything with the information is irrelevant. Whether they ever had enough time or power to stop the Song is irrelevant. Whether they would grow into something flourishing or into the Plenty is completely irrelevant. The point remains Venat condemned her people on a whim and the ultimate price she had to pay was being a goddess. Oh wow. Woe is her. How I pity her divine existence.