I would not expect to see Epics that are closed, but perhaps someone else might. THe overall concept is great, but seeing Epics that are closed is distracting. For now, I can move the active ones near the top, but this won't help with knowing what else is upcoming since the list is very long.
Thanks for your feedback and really sorry for poor experience. It hits us as well ... I completely agree. We are introducing filtering in the next release - expect it in July.
Let us know your email address so that we can keep you in the loop