That there are economical incentives to make it happen just to make money?
Such events have little-to-no "wisdom of the crowds" those events decided by a handful of people. And their consequences catastrophic.
What if there was a derivative for whether you will be hit by a car tomorrow?
What would you say if there was a contract on whether your county will burst in flames this month?
Are you happy because you can hedge this event, or don't you realize the obvious peril?