The judges knew that Charlie wasn't going to be in the group before the performance even aired. Her attitude towards the girls is what stopped her. They just kept her longer for the shows purpose. Otherwise, she should've went home after the last episodes elimination.
I talk about it in the last part but it true. The host was not even there. Why is background is red and not the stage and why there was a transition between tif and is moment. When the host can't go to the final, there a problem.
