Maybe. I'm just guessing. Really, do we have other sources to prove Alt's words? Why must we trust her at all?There comes a time when the amount of plot you have to outright invent to maintain that a character is lying is just unsustainable.
I'm not trying desperately to save this endings, nor to defend the developers from rightly deserved disappointment of players, just nitpicking. And lack of plot ibformation, details and outright holes are plenty.