I hadn't found a post that provided a clear answer so wanted to share that I recently redeemed BE points for a J award to Europe on IB. Since the flights booked into a revenue fare code (R), I wasn't sure if they would earn miles. Low and behold, I earned EQM and RDM as if I had paid for these flights. Silver lining for the expensive taxes and more costly points than AA saver award would have been, but worth it since the points were expiring soon anyways and there was no saver awards on the dates I needed!