Who has an interest in a single interpretation in this scenario? Asserting that an event 'standardizes' the understanding of another ignores the divergent strategies of the actors.
The profit of one can be the loss of the other, which creates a fundamental asymmetry of reactions.
For example, after an announcement from the ECB, institutional investors never react uniformly; hedge funds seek volatility opportunities while pension funds prioritize stability.
This divergence demonstrates that different incentives lead to different interpretations and actions, even in the face of the same event.
Balance is rarely perfect uniformity, but rather a distribution of individual strategies.