What do you mean “the discover and fix phase is over”? That implies that safety critical systems stop trying to discover problems and fix them? In what world is that true? You are always learning from mistakes and fixing them. Forever.
It's true in this one. Companies will design drones that comply with the very detailed regulations and go no further the same way car companies don't put seatbelts, airbags, or auto-brake devices into cars unless forced. The drone regulations are nearly done. Any further changes may take an act of congress.
