Because everyone will believe television over their real life dying friends and relatives.
The old addage that you can fool all of the people some of the time and some of the people all of the time intrinsically admits that there are circumstances where fooling all of the people is not possible.
PT Barnum was right.
The number of people have dead and dying relatives this November because of Obama care is going to be a tiny number. They are hoping they can lie and spin with the majority of voters, and based on past experience, they may get away with it, look at how they were able to take a victory lap about the fictitious 7 million enrolled and have the MSN declare it a huge success. Will it work? I doubt it, but what alternative do they have?