No owner, no thesis: claiming that the impact of local events is always a sub-part of destination validation ignores a crucial RACI.
Who has the ownership to decide when a local event becomes relevant for planning, and what is the escalation threshold?
Without a clear governance process, we end up with excessive analyses for business trips where only flight availability matters.
For example, for a corporate conference, seasonality is a factor, but a local beer festival is rarely an essential consideration, as there is no sign-off to include it in the process.