The other major mistake/hole in ROTS
I didn't read the ROTS book, so I don't know if it had been expanded on, but there is a major hole that I noticied when watching the film, and please correct me if I'm wrong:
Ever since Phantom, we've been trying to figure out why Qui-Gon didn't disappear when he died, like Obi in ANH, or Yoda in ROTJ.
Apparently, Lucas and McCallum said that it would be cleared up in EP3.
Well, they really didn't.
In ROTS, Yoda says to Obi that he has been communicating with Qui-gon (how in the first place) about becoming one with the force, etc, etc, (basically him doing the death/disappear act and then show up as a ghost), and having Obi do that new training while in seclusion, so he could then use it in ANH.
Well, if Yoda and Obi were the only ones who knew about this, then how did Anakin/Vader know, as he appeared at the end of ROTJ along with the Obi and Yoda.
I mean, I get the relevance of showing the return of Anakin in ROTJ, but to have the issue put out there and never really fully resolved was pretty stupid.