Why should a player receive a warning for Failure to Maintain Game State when they don't catch their opponent's mistake?

Ruling: Both players receive warnings (the player who made the error and the player who failed to catch it) to align incentives toward correct play and prevent players from intentionally ignoring opponent mistakes for advantage. The Failure to Maintain Game State warning is non-upgradable and primarily used for tracking patterns of behavior.

Nuances:

• Failure to Maintain Game State warnings don't upgrade to game loss like other warning categories
• If a judge is directly observing and the non-active player is clearly focused on their own hand/board, they shouldn't be penalized for missing the opponent's trigger
• The warning system tracks players who may be consistently abusing or ignoring opponent mistakes
• The goal is collaborative correct play rather than competitive angle-shooting