IIRC, Peggy has recently become somewhat religious herself. She's not areligious like me, let alone anti-religious. Her praise for the singing of GBA indicates this.
However, she does seem to understand, as President Reagan did, that some of the fragilest parts of the conservative coalition are people who believe in limited government and an assertive foreign policy....but are not devoutly religious and are indeed concerned about religion-based social/cultural laws.
The idea that there was envy here is silly. No speechwriter who wrote Ronald Reagan's D-Day speech needs ever be envious of anyone.
-Eric
But the President's speech wasn't about religion, it was about faith in God.