Well I guess I'm just rather oblivious. I don't think I've heard about Any authors' views. It'd have to be major headline news. That said now that I know a little bit about Card (never heard of Sanderson) I'm debating reading your links and being truly disgusted and simply not rereading any of his stuff. I also read ender's series in high school, I wouldn't have watched the movie anyhow but it might have brought me back to the books.
I can understand your points about the differences between the two authors and how it affects you decisions about their work.