User blog comment:IamJakuhoRaikoben/Chapter 353: Exorcism, Review./@comment-49.184.76.184-20130928015829/@comment-7418318-20130928142907

I think after being in the middle of this almost catastrophe the Fairy Tail members wouldn't feel like boasting about being almost helpless against those Dragons. Also I think they can be trusted to keep a secret, especially one that might do so much harm.

And even if someone's tounge slips, with their reputation for being drunkards people would probably mistake this slip of the tounge for drunken and empty boasting, especially the magic council with their generally low opinion of Fairy Tail.