I'm not a believer in government making things better. There has been a pretty poor track record of that.
Regardless of your stance on the issue, or what you choose to call a Spreading Wings, Inspire, Phantom, etc., the FAA considers them a UAS. In the case of Phantoms, perhaps sUAS. I regularly refer to mine as an aerial camera.
Prior to guidelines or software restrictions, and continuing even today, people push their UAS to ridiculous heights and distances. The boards (like this one, rcgroups, youtube) are filled with failures of the UAS system (communication loss, control loss, GPS failures, motor failures, ESC failures) that resulted in uncontrolled descent and impacts. The airspace incursions and potential for damage, injury and catastrophe are motivating authorities to "do something".
There are no circumstances in which a commercial or recreational UAS user should fly above 500 feet or out of LOS (line of sight), unless it is for building/infrastructure inspection (towers, bridges, etc.) or search and rescue, in which cases exceptions should be made to those certified to operate in the NAS (national airspace system).
500 foot exclusion zones, as requested of FAA Section 333 operators, are difficult to set up and maintain. That being stated, a UAS with 50% battery charge that undergoes a loss of control or system failure has a much larger range of potential impact. Given a speed of 30 mph for and 5 minutes of remaining flight time yields a radius of 2 1/2 miles and a potential impact zone area of 19.63 square miles, which is impossible to keep clear of hazards.
The only way to minimize a catastrophic event is the training, certification and insurance of operators and aircrafts. A 2.4 kg sUAS traveling at 20 mph delivers the same force as a baseball traveling at 412 mph. Granted the density of a baseball would transfer its energy at the point of impact much more efficiently than a disintegrating sUAS, the physics are quite scary for those in the radius of impact, especially while pushing a baby stroller.
As to what changed my mind about all of this, I was the proud owner of a P2V+ which was meticulously maintained. My Flytrex Live box stopped functioning, so I had removed it for service, otherwise I always flew with a tracker. I went up for a recreational flight and was on my own commercial property, taking photos of the building with the changing leaves. The software was up to date, and I performed a thorough pre flight and run-up check of all systems. I had 10 satellites. I was under 100 feet and within line of sight. With 60% battery remaining, the phantom began a heavy drift away and towards a tree line. Telemetry to the app was lost. I switched IOC to home lock and pulled back on the right stick. No response. I switched to RTH, no response. As it cleared the tree line and disappeared from view, I switched to ATTI and attempted to follow it. It continued out of sight and was not recovered. Loss of GPS, flight controller failure, bad motor or ESC, or interference are all possible causes, as is pilot error (though I have no idea how I could have done anything different). I am a licensed private pilot since 1997. I have flown over 500 hours with uas's, over 400 in type. If I could have an loss of control incident, anyone could, especially untrained consumers picking up a new toy from their local hobby store.
Had this incident occurred during a high school football game, or during a surfing shoot, or during a commercial operation in a more densely populated area, there could have been a traffic accident, property damage, or a personal injury. Since there was no control, the uas could also have ascended into the airspace (doubtful) causing an even greater tragedy.
Get on board with regulation and registrations, it is for the good of the hobby and the public. The wild west is being tamed, gents.
