The attacks on Stephens for this were entirely political and unfair. He certainly was awful, but the ante-twitter mob that converged on him led by late night comedians were computer illiterates parroting what they heard.
The reason he said it that way is because he was an old corrupt coot who had net neutrality explained to him in very simple terms by lobbyists and PR flacks trying (successfully) to stop it. The reason he was taunted over it was because of a strategy come up with by the opposing PR flacks, probably gathered around the same brand of whiteboard.