"I don’t think [Veronica] Roth has much say on the casting of the film of her book ["Divergent]. She certainly hasn’t been on lengthy bragging sprees about how “interfere-y” she’s been like Cassandra Clare was with “The Mortal Instruments” (her backtracking on that has been one of the pop culture highlights of my year). I understand not wanting to annoy the film’s producers or cause a fuss that could turn into something more public. However, her noted U-turn on the issue has to be addressed. We have to discuss the wider implications of what she’s said, what she hasn’t said and how the white privilege prevalent throughout the fandom and the industry has polluted the world at large."
Authors seldom have control over things like casting (although Cassandra Clare did spend an awful lot of time bragging about her creative control of the TMI movie until it flopped and she did a whole lot of hand-wringing). However, for Roth to go from being admirably vocal on a serious issue to mindlessly cheerleading that very thing she opposed is just sad.