I think the cloning idea is retarded as well, but just to play devil's advocate: Vader could have sent the probe out to retrieve Galen's body in order to extract his DNA for that very purpose.
Also, I agree that
Dark Empire was crap. I wasn't defending it, I was just saying that it sounds as though this game is shaping up to be a clone (excuse the pun) of that story. And as much as I detest the spirit-transferral thing as well, I have to disagree with you: it seems
very in line with
Star Wars, especially given Palpatine's musings about eternal life in
Revenge of the Sith, which casts
Dark Empire in a whole new light.