No, I'm saying there is no evidence the threat was made "to spread terror among the civilian population." If the threshold is just any act of war, which naturally causes some amount of terror among civilians, then the rule is meaningless. Whether it's done during negotiations is irrelevant.
I don't have a crystal ball into Trump and Hegseth's minds. But I don't get the sense the threats were aimed at the civilian population. Instead, they were aimed at leadership.