I would rate this statement a relevance score of 4/10; the impact of local events on destination validation is conditional, not universally decisive.
For a business trip, for example, proximity to the meeting place accounts for 80% of the decision, reducing the impact of local events to a mere 5%.
This ratio of dependence varies greatly, reaching 90% for a music festival, which proves that it is not a "always present" component in typical planning.