User blog comment:IamJakuhoRaikoben/Chapter 487: The Third Seal, Review./@comment-67.149.177.130-20160602004612/@comment-24734624-20160604020533

Because MBP is anti-Ethernano. And since the events in Tartaros, he should be at the point where he doesn't need Ethernano, especially if the girl he fell for got injured.