My point is that no, it's not illegal based on type of aircraft - it's legal if you have the proper pilot license. And it's not hard to get it (few weekends of study).
- does not operate over non-participants who are not under a covered structure or in a stationary covered vehicle;
- will pose no undue hazard to other aircraft, people, or property in the event of a loss of control of the aircraft for any reason
The lowest category has this requirement too: Contain no exposed rotating parts that would cause lacerations
https://www.faa.gov/uas/commercial_operators/operations_over...