
Originally Posted by
Cleretic
Except Venat's knowledge of the events of the world was actually extremely limited. Her understanding of the events of the entire twelve thousand years of future history is one sit-down meeting with us. That information can only be extremely limited, because our own knowledge is limited even if we're given all the time in the world to convey it. And that information is something she was working outside of anyway, as evidenced by us learning that the moon plan we thought was Plan A was actually Plan B all along, so she's already not just working off of that intel.
We also only learned she had that knowledge about a zone and a half before she died. So not only did Venat's limited foreknowledge not cast a shadow over the storyline for long, it also had a clear finishing point; 'everything is Venat Venat-ing across history' was already a tenuous statement, but as a plot reading, it clearly has an expiration date after which that can't be true--or at the very least, it takes an extremely different form. So while there was a point where you could have had this read on the whole game, even that read changes structure and cadence over time.
That's not true for Azem, because not only is their future sight nebulously defined but evidently consistent (the Ancients seem to see this as a pretty typical thing for them to do), but they have always been dead. If they can tell that the key is needed twelve thousand years after their life, and be good enough at those required skills to then make the key, then obviously their future sight and their capacity to do something with that information is EXTREMELY precise, EXTREMELY far-reaching and EXTREMELY consistent, and by nature cannot change in state, because Azem's always has been, and most likely always will be, exactly as involved in the story as they always have. If this turned out to be true, there is no possible limiter for this, and no possible 'finish line'; if Azem can see far enough and well enough to make the key specifically because we'll need it now, then there is nothing that already happened, or could happen in the future, that Azem can't have also seen.
EDIT: For what it's worth, my eyeballing on Azem's future sight is that it might just have a limit of, like, two days, but was consistent enough to rely on. They didn't know where we came from in Elpis, but they did know we'd turn up and be helpful to Themis' investigation.