Facing the situation at that time, the Human Race side was the most tense.
No matter what, angels are not humans. Even if they are on the side of the Human Race at the moment, when faced with a major decision, whether those angels will choose to help humans is something even the Human Race high levels are not completely confident about guaranteeing.
Thus, given the situation at the time, when the Beastman side already held the absolute upper hand, if the angels were to defect to the other side, it wouldn't be an impossible scenario.
Because of the possibility of angels defecting to those Beastmen, each high-level Human Race member grew exceptionally tense after hearing the words of those Beastman experts. If their current situation hadn't clearly reached a desperate place, the Human Race high levels might have been unable to resist offering a higher 'price' when that Beastman expert made such comments.
