The problem is, I was doing something when the collective rented ROTJ, so my theory is predicted on 20-year-old memories of what George Lucas imagined, not a fresh viewing of what George Lucas re-imagined. I don't really know if Luke was really in a "I'm not happy, but Leia's happy, Han's happy, those ghosts are happy -- the whole galaxy's happy -- so I suppose I should pretend to be happy" funk isn't just my imagination.