No real antagonists?
For a movie about people's lives being stolen from them, is there ever anyone that comes off as an antagonist? I think Miss Emily might be set up to be, but she's far from it by the end.
If not, then I think it clearly shows that this movie wasn't interested in the 'fighting the system' story, like The Island, which people seem to like comparing it to.
It may have had other problems, but the lack of rebellion wasn't one, to me.