User blog comment:IamJakuhoRaikoben/Chapter 473: Red Lightning, Review./@comment-112.209.237.205-20160215185652/@comment-5303512-20160215222117

Unless that Rune barrier was written to link to the MBP, or that in this state of infected MBP victims it acts like a blockage (like a barrier) for them from being able to use or get Ethernanos.