Flight search engines give you dates and prices, but to know if the Cannes Film Festival will make the streets impassable or the hotel inaccessible, that's not where you'll find the information.
You can't seriously say that these tools concretize the atmosphere or crowd levels related to a local event when their primary function is to compare airfares.
If we were to reinvest in the idea of these platforms, would we expect them to inform us about the local impact of Heritage Days?
It’s important to understand that what these platforms measure is the supply and demand of transportation, not the soul of a place.