I find it a little odd how heavily people lean into the brainwashed Hermes as being such a huge obstacle to telling the Convocation about the Final Days when the immediate important factor was that a dynamis-induced apocalypse is coming, not that it's being instigated by someone's rogue creation or that the entire universe outside of Etheriys is probably dead.

It's not as though she couldn't stretch the truth a little in order to deflect suspicion away from him, plus the Elpis flowers existed both as proof of dynamis as a concept and as a way to measure its effects.