Sarah Palin was never a candidate of the quality to be on the national political stage. I would argue that she quit as governor because she could make more money doing other things...at least for awhile, which was the only reason along with attention that she was attracted to politics in the first place; and because she was not very good at being governor, as her many law suits and the state push back has demonstrated, including from her own state legislature. So in the context that Palin appeals to the insipient (no, not incipient, they are different words) cave man in in the right wing culture warriors, this is a very funny bit of word play.