I saw it. It's speculative. People put political digs in movies all the time. BTW, I gave the film 3 stars out of 4.
The quote I've always heard as a dig at Bush was the "Only Sith see things in absolutes". That quote, an absolute in and of itself, isn't so much a dig at Bush as it is a necessary statement consistent with the Buddist underpinnings of the Star Wars "force". It would be a dig at Christianity, Judaism, Islam, and any person who practices those faiths. It also can be seen as a rebuttal against the religious ideology displayed in Star Wars's recent competitor, Lord of the Rings.