I would agree with you in that the CGI alone doesn't justify the whole movie, after all it's looks like the done the new CGI only for test the technology in preparation for the Sky Crawlers movie. But there's not the only additions inluded, they re-recorded the dialogs and even the have some variations from the originals, and the remastered music sounds even great, or did you make the anology with Star Wars because the sound were remastered in Skywalker Sound? xD
Anyway my point in this is that the CGI is cool, but it seems to me most likely you did a poor check in the material and anly focuses on the animation and obviously you dislike Oshii's work