True, but there is an almost childlike literalism to the small amount that is unique about Mormon theology, plus it all arose in the era of the printing press and governmental archives, so there are fewer excuses. It's also culturally very top down and high pressure, as you are keenly aware. I'm not sure I'd go so far as to call the mainline LDS church a cult, but it's definitely closer than, say, the Episcopalians.