User blog comment:IamJakuhoRaikoben/Chapter 473: Red Lightning, Review./@comment-5143845-20160215212107/@comment-5303512-20160215222812

The runes can effect things in a paracausal manner that do not follow normal rules of things such as, "one the victory can leave the runes" or "those who use magic will be deprived of air". So in this case, it would require something a little more extra to nullify the Magic Barrier Particles.

If the Magic Barrier Particles were still in the air, then that would destroy the magic.