That was wonderful of your family and all the others to help out as needed. And talk about being in the right place at the right time for the BF!
In my case I was embarrassed, and have the tendency to shy away from people. Perhaps folk sensed that? My only comment is: Disney, you desperately need more benches.
Back to folk being injured by swinging selfie sticks... unless it happens to a cast member themselves, a child, or a very vocal person, Disney will not even know about it or care. To this day I have not seen one of these sticks in person. They look rather lightweight, but I suppose even a feather can damage an eye. Hopefully no one has to find out how bad they can injure.
I've seen several, primarily at MK. They look pretty substantial and would have to be to hold a phone/camera at a distance of 3-4 feet. And the person walking around filming him/herself looked just plain stupid. "Oh, look, here I am standing in front of the fountain at Gaston's Tavern."