To be fair, one’s bound to lose a few details when attempting to cram 150-200 years of your life in a single line that hopes to explain satisfactorially enough to someone how you knew another. 🙂
But they could have easily had him say, “It’s a long story. Short version is this world isn’t the only one I stopped in when I left home,” instead of, “It’s a long story. Short version is this world wasn’t my first stop when I left home.” Only a couple of words different, but it alters the meaning. If they meant the former, they bloody well shoulda used the former. 😛