Why are people so obsessed with Arthur talking to Sylvia?

“He and his loyal followers from the Vritra Clan had scoured through the buried texts of the ancient mages and tried to build upon their work in a different direction, using the lessers as test subjects. I do not know what his end plans are aside from conquering Epheotus, but he had been investigating an element—an edict, higher than what aether encompasses, above that of time, space, and life. Fate.”

She herself admits that she knows NOTHING about Agrona's plans. A conversation with Sylvia will not give Arthur any new information. Apart from that, Sylvia's story was a tragedy because she never knew anything about the world or the people she believed in know

She fell in love with Agrona believing him to be a timid researcher when he was already a psychopath who was experimenting on Alacrya, then she went to help him when Kezess wanted to kill him and then Agrona imprisoned her in a cell and kept her in that cell throughout her time in Alacrya.

Also do you think that if she knew something she wouldn't have told Arthur in her message? She also has no reason to lie, the only mystery related to her is how she managed to escape and even then it is possible to theorize that it was a vritra (Khaernos, sovereign of the central domain and that is why Agrona silenced him) who helped her flee but again she did not knows nothing of value Who

Arthur should talk to is Oludari and not let the dragons take him this time.