User blog comment:FairyRaven/Fairy Tail Chapter 363: The Stories That Demons Read, Review and Commentary/@comment-24066070-20131207015742/@comment-7418318-20131207093806

A bomb that turns all wizards into normal humans? Doesn't sound all that diabolical to me, if it comes from a time when magic using beings (Zeref or the Dragons maybe?) dominated the masses with their "evil powers".

Of course in today's Earthland and the way magic is integrated into everyday's life and the economy it'd wreak havoc with the entire continent, but we don't know the situation of the time it was build in.