There's no debate, and it was you who brought national parks into this discussion, not me. The NPS isn't obligated to accommodate every popular new toy. Be content to fly where you can.
Red Rock Canyon, even when framed by quotation marks, isn't a part of our National Park System. Neither is it administered by the National Park Service (NPS). It's administered as a National Conservation Area by the Bureau of Land Management...
Well, then, this non-lawyer thinks that the quotation, whether in Latin or English, is imprecisely worded to achieve its intended meaning. For sure, its origins in English common law predate and couldn't have envisioned the Wright brothers' rude...
There's no doubt that we have the engineering expertise and manufacturing capabilities to design and build drones. What we lack is the long-term vision, the will, and a sense of urgency (because it's easier to let George do it at a lower cost)...