Everyone scoffed at Kate's words.
When they first came in, they would think that the prison was nothing special and thought that they had the ability to escape from this place.
Only after entering did he realize that it was purely wishful thinking and impossible to do.
When they were so extravagant that they used the planet as a prison, this part of the world would be the largest cage. Without the means to fly in the sky or burrow underground, what was there to be afraid of?
The warden of the prison was very clear about this. By throwing the prisoners to the ground and cutting off all possibilities of leaving the ground, they could ensure their safety.
The prisoners could do whatever they wanted. Since they were all on this planet, even if they tried to escape, they would have to come back obediently in the end.
Kate had just arrived, yet she dared to speak so arrogantly. Naturally, she was ridiculed.
