Dangerous toys in the hands of idiots ...
http://nypost.com/2015/08/01/drone-nears-delta-plane-as-it-lands-at-jfk/
http://abcnews.go.com/blogs/headlines/2012/07/jetblue-pilot-suffers-eye-injury-from-green-laser/
Imagine you or a loved-one being in a plane, making a critical approach at an airport - all of a sudden some fool jeopardizes the lives of hundreds because he wants to "play" with a new toy.
So, yes, I'd say any kind of metal that would be gulped into the intake of a jet engine would not be healthy. If one of those stupid things hit the cockpit glass (airplanes approach at 200 mph), it could possible injure the flight crew.
Unfortunately, nothing's going to happen to stop this crap, until there's a major incident; then there will be tremendous outrage and a flurry of finger-pointing.
These are incredibly advanced machines and they just need to be used
In a responsible manner. Unfortunately, some idiots will ruin this awesome tool for us videographers.