The Right Way to Thank God
This CNN article got it all wrong. I believe most Christian athletes thank God in front of cameras because they are genuinely thankful for everything, win or lose. They know that everything good is from God, even a loss. How can a loss be a gift? God promises that all things will work for our good. (Romans 8:28) So yes, go ahead and thank God always - when in front of camera and when not in front of cameras - always.
Here is another good take (and video) on the topic. It is great to see Christians giving thanks in all situations.