SPOILER ALERT
The trio is not united in this moment: Pandora is too unstable, and she manipulated Lilith to be more angry in the meeting with Titania (only the Box knows why). Zoraida is too busy to attend Titania, and Lilith fears a war between the neverborn but she is too stubborn to kneel.
On the other Hans, Titania must fear the trio, if not, she would have met them before speak to Lucius.