Under Wei Dianyuan's simple explanation, this minor misunderstanding ultimately did not escalate into a major one.
Normally, this might have been difficult, since the Nissians who work here are akin to exiles, perennially closed off, with information blockades so severe that it's infuriating, utterly unaware of the "infamous V" that has emerged in Hailan City.
Moreover, they are more sensitive to Undead Creatures than others, and might have directly attacked.
But fortunately, they witnessed firsthand how this group of "Undead Creatures" spawned monsters, which was enough to maintain their initial calm and restraint, and to convince themselves with "they have no Death Qi on them, they absolutely cannot be Undead Creatures."
So, it's not that the will within Supernatural Energy can control behavior under any circumstance; in the face of an absolute gap in strength, even the most devout person may have a moment of hesitation.