All of them present in the VIP room ready to take action the moment when they notice that the aura of Gustav suddenly became strange. All of them quickly used these techniques and instantly they got to see that Gustav was releasing dark aura from his body. With that it made all of them very alert and they were ready to take action. But at this time Saint Markus and Saint Vena stop them.
It instantly made all of them very confused why they were stopping them, but only at this time all of them noticed that Sam, who was still in the battle ring, didn't panic. He still maintains a calm look. With that everyone understands that most likely Saints Markus and Saint Vena still believe in Sam, and because of this, they stop them. So everyone right now focuses on Sam.
