Endwalker was a great mess(SPOILERS)

[HappyHubris]

And let's not forget that Venat's actions also led to Meteion singing her song of oblivion for 10000 years leading countless worlds to their destruction.

This is a good point, too.

Personally, my headcanon retcon is that Venat was mind-wiped, because anything else makes her the worst monster in the series.