Rulemaking bodies are comprised of "industry leaders" (mind you, that for Part 107 about 50% of these "thought leaders" now have defunct companies). I will point you to Airware as a prime example, who rumor has it never completed a revenue earning flight with their own air vehicle and autopilot.
These industry leaders use their own proprietary technology and investor slide decks to establish as "the way to be safe" and that gets pushed into some weird kind of law that serves little more than the isolated interests of these ridiculous bodies of people.
A popular saying is that "the FARs are written in blood". IE: the FARs come into place because of a pilot error or aircraft accident. Letting these new flying car companies help decide what is safe is going to end up in a disaster.
https://www.faa.gov/regulations_policies/rulemaking/petition...