I'll try asking them that next time. I should mention that I've also had really good efficiency (80%+) on a few brown ales from them in BIAB. I would like to keep ordering from them. Their shipping is certainly on point as far as delivery times are concerned.
I've had the same issue with AIH recently and it has cost me efficiency. I just ordered another recipe from them and it should be here tomorrow. I'll take a good look at it and hopefully remember to post. I've heard that some supply shops may also have issues with their mills falling out of...