The rules are necessarily broad, since the agency is creating guidelines nationally for vehicles that will travel through myriad jurisdictions, all potentially with different laws for law enforcement, personal, and commercial drone usage. Another reason is that safeguarding privacy is a new role for the agency, and they're approaching it very, very cautiously. (For an example, see this back-and-forth between the FAA and those seeking greater privacy protections, published by the FAA in the same document with the new privacy rules.) For most privacy rights advocates, the FAA might not be going far enough. But having the framework, and acknowledging that privacy is a major concern, is a big step forward, and there's plenty of room for further improvement in balancing the benefits and dangers that come with thousands of cameras flying overhead.