I think Occupy never really died. It sort of just murmured in the shadows. Bernie is basically Occupy's presidential candidate, even if the actual group was long gone.
They likely would have been more successful had they started up these days. It's interesting the attitudes against Wall Street seem more powerful now than they were 10 years ago, even if WS hasn't really done anything of importance since the crash.
I don't necessarily think anger at Wall Street was a dividing element between supporters of the different wings of the party, either. Myself and other Clinton supporters I know weren't happy about her speeches just because we looked the other way; we all want the banks taken to task because we see it as necessary to us actually getting a future instead of descending into a neoliberal dystopia or whatever.
So I think it's important to stress that just because someone defends Clinton or Obama for being cozy with the banks or doing the speeches, doesn't mean they aren't angry as fuck about the state of affairs. I know I am.
I also think Sanders gets more ownership over the issue than he deserves, given what Warren is doing.