Who is responsible for the final decision regarding local events and their impact on the destination? Asserting that the evaluation of local events is just a sub-part of destination validation ignores the need for a clear governance.
Without a designated owner for each major event and a defined escalation process, risks or opportunities cannot be managed effectively.
For example, when planning a trip to New Orleans during Mardi Gras, a clear sign-off on additional costs and timelines is necessary, not just a quick assessment.
This requires a RACI (Responsible, Accountable, Consulted, Informed) to ensure impacts are well documented.