where that elegance breaks down is when using a lens without an aperture ring... you have to spin the control wheel quite a bit to get over to the far end that allows the mode change.
Otherwise, yes, it's a good concept and it certainly works well to slow _me_ down to be a little more careful about taking the shot. Which seems to me a bit like what the Nikon Df was trying to accomplish. Not a bad thing, but it can feel like a handicap if your used to a mode control (dial) you can change in a fraction of a second.
Ah, fair enough. I don't have a lens without the aperture ring so it's never been something I've dealt with.