Illegal in all western countries?
Exceeding power limits and ignoring bandwidth management protocols or limits surely breaks EMC legislation. This is fine if there is a genuine emergency in the same way that an ambulance can break the speed limit, but jamming a legitimate spectrum user bcause you do do not like what they are doing? This has the potential to create hazards when drones fallback onto whatever their default behavious is. A safe landing may not be totally safe if it lands on a road for example.