It looks like it broadly fits the powered lift category but the essential problem for the regulator is how do you assess its fitness for flight. What criteria do you use to determine airworthiness ? The same problem applies to the pilot, how do you determine that they have adequate skills to fly safely ?
When one of these crashes into somebodies house you know fingers are going to be immediately pointed at the regulator. Ironically the certification oversight issues that contributed to the 737 MAX fiasco are in comparison easy to fix.