Thanks! I never look at my Desktop and so never noticed it. I deleted the original, moved backup today, and there is nothing on my Desktop about Relocated Items. That could be because I removed it, like an Apple smart link thing, or maybe it was never there - dunno.
IMO, if they're going to do something this drastic, they should at least have a one-time large pop-up box after the upgrade explaining that they moved things that were formerly in root, and wait for a user to confirm that they read the notice.