I think people are over-reacting here and being a bit over-dramatic.
I watched the video and I found nothing mis-leading about the editing. They were clearly in a pet store, and the snakes were clearly in display tanks in that pet store - they even said that the pet store sold snakes that were NOT copperheads.
I understand that we're sensitive about news stories about our beloved animals, but we don't need to knee jerk react to every single one of them, especially one as benign as this one is.