Im gonna add one more piece of info though... Y'stola is the only character with a literal death-clock. She is going to die. Probably in Endwalker (but im sure everyone said the same thing during stormblood and shadowbringers). And suddenly a character with her mannerisms appears in shb who also appears only when necessary... (not to bring back the rich streams - but he often remarked how she was conspicuously absent throughout both sb and shb (and hw to be clear) - and he also mentioned her sudden sassy personality change during shb).
But yeah, i get it. She is rational, clear, and direct (to an absolute fault). Hythlodaeus is vague, open and misleading/misdirecting (which points strongly to urianger/crystal exarch). Im chasing chimera, but her character is transitioning and becoming more like her master (which the broom scene really bashes on the nose). Her master is obviously guarded as fuck. I just feeeeeeeel that she has to die soon enough. Its been set up and cant not be paid off indefinitely. But Hytholodaeus is one of the best mysteries in game. And a recurring character. And Y'stola is arguably the most beloved scion.
I accept this is an emotional appeal and not entirely rational. But gra'ha... doesnt have a countdown over his head. Y'stola does. And she shares animations. And she turns up only when required, and she isnt the logical sidekick, but the one who actually changes shit, and she has a color emet recognises, and she can see ether trails, and she is someone emet would even deign to save, and that she'd constantly put spanners in his plans, and that she'd need a cat nap just as elidibus takes us on a journey, but awaken at the end of the journey just in time to disappear to fetch her bags.. then reappear as we collect the final stone as we finish our discussion with hytholdaeus. I mean, im not saying this all boils down to the fact we havent seen ystola and hythlodaeus ever in the same room at the same time. But... she was literally there, then she wasnt. Then she was... (:
"And she turns up only when required, and she isnt the logical sidekick, but the one who actually changes shit,..."
Hang on, i should 'temper' this. She offers only guidance. She doesn't change things, per se, but influences them.
If there is one thing pulling me back its 'the echo'...
But then... i remember elidibus indirectly explaining this when he revealed the sundered inn keepers. They dont have the echo, but theyre nevertheless implied to be sundered amaurothians. Which i guess makes me curious about what the difference is? ...and hythlodaeus never was part of the convocation? Which is odd, because its not like theyve run out of members in game. From a pure narrative perspective, they could easily be one of the 14. That they aren't feels important... for some reason.