sounds like a rebel. NFZ purpose is to aware and to save average end user from getting into troubles. But if you've got an official permission from local authorities but still cannot fly because of NFZ fw restriction - yes, this is a kind of a problem. I don't doubt skills of any nation, but, AFAIK, DJI developers locate in China (may be they are international crew, I don't know). And Parrot developers settle in France. When I open up, for example, China-made oscilloscope, I see SoC ic with grinded off markings (pretty dumb method of intellectual property protection, IMO, as you can see or trace every contact and its purpose and eventually find out specific component by its datasheet). French developers can actually use decent encryption of fw stored in a FLASH ic (using HW encryption capabilities provided by manufacturer of SoC) - and programme in decrypted form will exist only in RAM whilst being executed. Less probable, just thoughts. But almost nothing is impossible, never say never. What one could build up, other can always disassemble.
