Flight controller may get confused and attempt to fly the thing
The flight controller is ALWAYS flying the thing. And if you were paying attention (which you weren't), you'd note that I was talking about how the flight controller might handle the presence of debris gumming up a motor and overheating an ESC. It happens all the time - insects, dust, leaves, etc. As I also pointed out, this stuff will seem mysterious to smug people who obviously have no experience with this stuff in the real world.
About half again that much by the time you install gimbal, camera, and VTX for downlink. Regardless, shall we do a test where 1300g hits you in the head at 30+mph? No? Huh.
The Phantom 2 does not have carbon fibre blades. This is quite significant because plastic doesn't hurt when you get hit by it (spoken from experience).
Many people retrofit with CF props. Regardless, the stock props are plenty capable of taking out an eye, or laying open the meat on your face.
Though you can use the same Google you're talking about to see lovely video of hot, instant fires caused by multirotors hitting the pavement from a long fall/dive and having their onboard LiPo rupture internally. They are very energetic. Just what we need - video of Lithium-fueled fire on someone's July 4 picnic blanket, right where their kid had been sitting in a crowd.
The public couldn't give a shit. They don't care about you, the drone...
Which explains why the FAA gets a steady stream of phoned-in tips from the public, which they use to issue subpoenas and cease & desist letters threatening fines. Or you could read up on the case of the 17 year old out having a nice time flying FPV in a wide-open public area, up until some lady started to quite literally beat him up for doing so. She gave a shit, enough to commit assault over it. Tip of the iceberg.