>>528644647
The Heavenly Principles wanted to destroy Khaenriah for being too powerful or for whatever other reasons, their solution was handed to them on a silver plate.

That solution is so out of reach of even a powerful nation like Khaenriah because it's outside of their time, in the future

By distracting the Abyss sibling by something from the future, the HP effectively sealed Khaeriah's fate, and us the players/ Travelers doomed them for simply existing in Teyvat, past, present or future doesn't matter

Tldr: Heaven Principles killed Khaenriah through Istaroth by using us the player as a literal 4D chess move