There has to be a level of "competently trained user" in there we can strive for. I think we were getting there about the time I was in high school circa 2003, where every last one of us could format an MLA essay in MS Word and do an autosum in Excel.
Something that put me off of Microsoft products for a decade before I switched to Linux was their constant rearranging of the UI, requiring users to re-learn how to do basic tasks that worked just fine.