The purpose of a tabletop exercise is not to confirm that an emergency response plan exists. It is to discover how well that plan performs when assumptions are challenged.
A tabletop exercise only becomes valuable when it reveals weak points clearly enough to improve the next session.
A tabletop exercise may feel productive in the room, but the real test is whether it reveals the decisions, delays, and weak points that need to improve.
A tabletop exercise only becomes useful when injects, decisions, and checkpoints are captured clearly enough to improve future sessions.
A good tabletop exercise should produce clear decisions, tracked actions, and a usable report. Without that, the session becomes difficult to review and harder to improve.