The power of the Moon Realm link was directly from the Void Sovereign Himself, and blocking them from Black Crow Gaze was not something that a new Demon General, Dementia, could do.
It was clear that this had the approval and support of its master, Absurdity Jester.
The Thousand-faced Dancer had this in mind and so did not plan on solving the problem through violence like Carnage. Instead, it tried to talk to the other party and at least find out the other Void Sovereign's attitude in this matter.
However, when the Thousand-faced Dancer spoke, Dementia only yawned and scratched its butt before settling into a more comfortable position on the float. It completely ignored the Demon General in its dance dress.
This made the Dancer's face stiffen, as being ignored in front of the four legions was nearly an insult to it, especially since vanity was its life.