Beck plays the game, he will deliver as much Mormonism as his audience will tolerate, Mormons are taught how to work on people and overcome their defenses, Mormons are even taught to lie and to conceal Mormon teachings and to let them out in stages, "milk before meat" they call it.
Mormons first want you to think that they are one of you, Christian, they speak of Jesus etc., the goal is to string you along, to pull you in without triggering your defensive response, or shock, or revulsion.
Even within the religion, the people are separated, regular Mormons are forbidden to worship and witness the secrets and ceremonies that the elite Mormons attend and perform in those grand temples. An annual ID card is issued to those who pay 10% of their verified income and who must pass an interview every two years, to use those temples and to know what happens inside.
Here is Beck's book on Mormonism-- http://www.amazon.com/movies-tv/dp/B001EVKWLQ
Beck does promote Mormonism on his show, for example here-- http://www.glennbeck.com/2012/09/06/polygamy-magic-underwear-people-on-bikes-glenn-discusses-mormon-myths-in-theblaze-tv-special/
OK, I get it about “the milk before the meat” tactic used by the mishies because “the milk” is probably all they are capable of defending at their tender age.
I was tending to agree with whoever said that GB turned to Mormonism to give him the dawn-to-dusk discipline & supervision to overcome his personal devils that he was unable to deal with using the Catholic teachings he was brought up with.
GB himself probably wants to take in only “the milk” & would rather not have to `hie himself to Kolob in the twinkling of an eye’ and be confronted by Joseph Smith wielding the keys to the Celestial Kingom. He may even be uncomfortable at the Mormon aversion to the Cross, and that their temples are topped with the image of an angel the name of which doesn’t appear anywhere in Scripture.