I suspose that they are trying to create a bit of suspense by showing you an extra bit at the end to keep you hooked. I don't know if it will work or not simply because I don't watch Emmerdale! I only catch the end because I am waiting for Coro street! Saying that I have heard that Emmerdale is brilliant and I really should start to watch!
It really is strange, they seem so wooden when they do it, I have started watching but don't know how I got sucked into it, I don't think I will watch anymore, expecially with the strange end bit.