Correct. My first reaction was that the back of the neck could easily snap and the tackler could be paralyzed for life. As a side note: listening to the commentators discussion of his father's approach to football you might get the idea that he has been taught to inflict the greatest amount of pain on a runner as possible. In that light the helmet is a fierce weapon as there is nothing soft about it. Could be he's been tackling like that since he began playing and it is very difficult to stop doing it. It is telling this has happened before to the same player and in a championship game as well just a year ago.