User blog comment:IamJakuhoRaikoben/Chapter 455: Magnolia's Defensive Battle, Review./@comment-4933386-20151005104236/@comment-9595671-20151005110707

Last chapter, the forces they faced against were at a manageable level. However Mavis' reaction at the end shows they have become overwhelmed and their forces will be spread to thin.

They'll need the help of the other guilds, just like during the Grand Magic Games and Wendy thought would help them against Face. Even if they're not part of the guild, Fairy Tail's friends are just like members.