The original trilogy, while ultimately made more “Hollywood” in the last chapter, was great storytelling. It was the perennial hero journey, set to a backdrop of epic proportions never seen before in cinema. Whether or not you actually liked the subject material is irrelevant.
Besides, how is it you can say with such confidence that the Panzer world has “much more vision” than the Star Wars world? I could just as easily say that Panzer is just a rip off of Mobius and Miyazaki, and the conversation could end there.
PDS was the resolution to the Tower legacy. Regardless of what the audience knew about the Towers when it happened, they were laid to rest, and their reign ended. Just because not everything is revealed doesn’t mean that it’s bad storytelling. It’s in media res, and a very valid way to do it.
Just because the Nausicaa movie doesn’t go deep into the backstory of how the world got to be the way it was, or how the Oumu came about doesn’t make it a bad movie. It may appear shallow in comparison to the manga, for instance, but that doesn’t make the movie bad.
Same thing with Panzer. Just because there’s more to the story, doesn’t automatically make the part that was told bad storytelling.