Kesiah summoned her Divine Armament after declaring her intent to continue.
She would have hesitated if the silver dragon was still present, but there was nothing to fear since he had already left. The three magical beasts were still there, yes. But she never viewed them as a threat.
Magical beasts are feared by many because of their seemingly bottomless magic reserve, even without possessing a Divine Armament. In this regard, they are similar to the Beast-likes, who could manipulate the land's mana at their own will. Because of this, killing them seemed close to impossible.
But that only applied to a group of Noble mages or Eidum fighters. Armakea had their knights, whose abilities, defenses, and strengths far exceeded those of the mages and fighters of other nations. Thus, they do not share the same fear as the latter.
