Same thing that happened to the kid happened to me, but in my case luckily I was opening it close to a table with a tablecloth, so nothing bad has happened. Be careful when opening the box. The shaking of the box to get it to open also dislodges the phone and it will probably fall off when fully removing the top cover. Just use care when opening the box and try to open it over something soft (carpet, bedcover, etc.).
I think the kid was kind of enticed by the reporter to open the box in front of them. I think the tv channel should at least offer to pay for a replacement, etc. if the kid prefers the phone to be replaced. In my case I would be pretty bummed if that had happened to me. Getting a new phone and immediately dropping it and most surely scratching or denting it.
My 2 cents