Barris wasn't OP...just leave her for the last and it will be fine. She brings utility such as equalizing hp through healing block, which might have count for her lack of damage. Overall, I don't have issues with her, neither do I own her. The nerf might be too hard for most to swallow..but Jesse has already mention there will be an emergency discussion with the backroom on this. Lets see if there will be any progress from there.
Talking about OP, i think Vader's culling blade combo is more OP...IF it is team up correctly.