Since Queen Swan was still unharmed, they didn't dare to oppose their king for now. As long as the Beast King didn't hurt their Queen, then the beastmen generals and soldiers would still be his most loyal subjects.
"Go and tell this to the soldiers under your command; whoever could capture that traitor, I will promote them to be a commander or even a general. Their tribe will also be showered with gifts from the Beast King."
If it was before Queen Swan entered their kingdom, the soldiers would be ecstatic knowing they could get such an amazing reward. Nowadays, all they could think of was their Queen's condition.
What if she was too sad over the whole situation, too distressed, and then died? The soldiers would turn their backs on their King and start a rebellion, even at the cost of their lives.
Suppressing their thought, they responded positively;
"UNDERSTOOD, YOUR MAJESTY!"
**