This has already been the case for political and/or social impact events for years in the UK's betting exchanges. The settlement rules for any potentially hairy real-world event have to be explicitly clear and account for all possible outcomes that might affect the resolution.
When there's money on the line, I have years of hard evidence that arm-chair lawyers (ie. betting exchange clients) will do absolutely anything to find potential loopholes in settlement rules and argue that their bets should have paid off.
When there's money on the line, I have years of hard evidence that arm-chair lawyers (ie. betting exchange clients) will do absolutely anything to find potential loopholes in settlement rules and argue that their bets should have paid off.