IMHO I didn't feel the article was really a beat-up. It might have brought up issues that have been raised before but I feel that those might be seen in a different light given the recent events mentioned. I do feel that "The question at what point submissions can be revoked is a general one, not tied to CLAs, and it's come up in the past" is indeed a valid point but I also feel that copyright assignment and when it occurs is an important issue which is worth mentioning when it arises. Please forgive me if I repeated myself in this post.