some of the copying of plot points is due to the nature of the galaxy they're in. the empire likes to make big round powerful weapons, with trenches. it's what they do. it's their thing. they also like impossibly large space ships shaped like triangles. do they need to start branching out stylistically? do they maybe need to find a different defense contractor? yes, clearly. this time, instead of building a moon, they built their weapon into a planet, through it's core, however improbable that it. I guess they could've lopped off a couple sides of it to make it a giant tetrahedron. or cube it. maybe have the gun hang off the side like a big angry Q...? I'm okay with it. the trench? I guess. sure. need to pop some hard right angles into these things instead of all the straight runs. but it took more of a ROTJ-style attack to defeat it than a single lucky shot from luke. and if there wasn't a weak spot, it would become a very sad movie where the bad guys win easily, or the good guys have to win by slowly punching away at the diamond wall. attrition is really hard to do cinematically. so. desert planet. ok fine. they should mix up a little more effectively where they source their protagonists from. beyond that, "hey look, our hero is a happy, well-to do kid with a robust, full family and lots of friends." doesn't seem to have the same draw as some down on their luck dreamer whose been dealt a raw hand. though I suppose the down on their luck thing doesn't come off as effectively if the kid is on a verdant lush forest world. the thing that I took away from the movie was that, yes, these points were taken from the original, but how they got there was different, and unique, and served, to me, to show how cyclical the star wars universe is. I also feel as if the remixing of these elements was viewed as necessary (and I agree that it was) to establish that, 'hey, this really is an actual star wars movie' and not just some other piece of fan fic using some of the same characters. it was safe, sure, but for me, it worked, and worked fantastically well. will it hold up as well on a second viewing? I think so. also, I look at it like I look at the terminator and T2. a lot of the same things happen, and there are frequent callbacks throughout. and in the terminator series, it makes sense as to the inevitability of the future, whereas in star wars it's about the cyclity of it all.