That's because, like the Tea Partiers, OWS are "angry". Unfortunately, due to their increasingly well known suspicion of authority (sending the cops to beat them kinda does that), they are less likely to accept someone or some group focusing them on the corporations.
What is more likely is that said group will take it over and bastardize it into a caricature of itself, leading to the moderate OWS that suddenly focuses on women's wombs or something.
Hate always sells. And it's easier to hate those groups than the ones in power who might give you another crumb. After all, that one more crumb might make a difference in your survival, which conveniently sets one against the very groups and social networks that would change that.
Economics is power. And the 1% know that very, very well.