Don't worry. God is not mocked. I would rather the see the media mocking those who are coming OUT of a cult, than to remain silent while people stay IN the cult.
I have many, many Mormon friends and I really think this election is literally a blessing in disguise. While many Christians have attempted to show the truth of the Mormon lie (myself included; many, many times), perhaps it will be the secular US news media that has the greatest effect. It won't be the first time that God has used the ungodly to reveal truth.