This is an order to register all R/C (unmanned) aircraft operators not their specific aircraft.
This will make it easy to pull up a list of all registered operators in the area if something bad happens or has been reported. Much easier then going out and doing actual investigations.
Knock-knock, may we come in and see your drones?
How long until the media has the list of evil "drone operators" in the local area?
That would make great splashy headlines.

To think we used to hot-glue up flying wings made out of insulation board and throw a receiver into them for hours of fun, under age 13 now it's illegal. The horror. Maybe dad will register with the FAA for you?

It's a sad day for R/C modelers and another nail in the coffin for freedoms.