The idea that UI is the problem has exercised minds for a long time. It is an assumed aspect of Don Norman's Design of Everyday Things. But presenting it in terms of a dichotomy of more or less really does miss the point. Timo Arnall responds to the urge to 'invisible' design; effectively to strive to make the design disappear from the user's awareness. (link)
Think instead perhaps of presenting more information for use rather than attempting to hide everything away. People are going to come up with their own theories anyway, all you achieve by hiding stuff is making people ignorant. Not everyone wants or needs the world to work like a magic trick.