Not all the Players in the room reacted in the same way to this surprise collapse. The hologram representatives were obviously helpless from wherever they were and calmly accepted their dismissal.
A few flesh-and-blood members made up the bulk of the screams, but most of them were really just the subordinates and other bodyguards providing security for their superiors. The brutal truth was that the Players sitting on those stone thrones didn't need their help at all.
Ignoring the panicked cries and grunts of pain from their pawns, Nucnar and Belakor snorted loudly without moving from their seats. A single sneeze from the rock giant restructured the stone table in front of him and stopped the falling rubble dead in its tracks. When he lifted a finger from his armrest, the debris turned around, the destroyed ceiling rebuilding itself as if one were turning back time.