User blog comment:IamJakuhoRaikoben/Chapter 428: If Our Paths are Different, Review./@comment-72.193.71.177-20150414033108/@comment-1359322-20150417103032

Well just thought that it'll be interesting plot wise. It also gives a reason for Natsu to be separated from Lucy and Wendy. That way, while Natsu tries to overcome his doubts, Lucy and the others gathers other members meanwhile. Letting Lucy and Wendy travel with Natsu almost necessarily means no screen-time for them after all.