Commercial exceptions are well-established in U.S. law.
But this isn't a case of a commercial exception. Commercial aircraft operators are subject to far more stringent regulations than private/recreational*. And that's fine, particularly for passenger carriers. For the public on the ground, I want the regulations to treat commercial and private safety equally. I'm not going to be happier if some billionaire drops his personal 737 on my house than if it was Southwest Airlines. On the other hand, once a drone operator 'goes comercial', I would expect them to carry liability insurance and have deep pockets to protect. As a result, I'd be more comfortable with a business operated drone than a hobby flyer over my house.
This is just like Uber and Lyft vs New York City. The entrenched cab interests have one way of doing things and they are using their regulatory agency to block new technology. The same appears to be happening for flight serice companies. Piloted aircraft for hire are having the FAA protect their turf.
*The general aviation manufacturing business almost went under in this country until legislation was passed to limit their liability. That runs counter to the idea that there is an atmosphere of business exception in this country.