User blog comment:IamJakuhoRaikoben/Chapter 449: Mavis & Zeref, Review./@comment-24951162-20150825011429/@comment-7418318-20150825070724

I'd rather they go all Magi with the flashbacks than going Bleach.

At least in Magi it made sense to have the flashback arc right where it was, because it fit into the story there.

Bleach seemed to just pick a random spot anywhere in the story, square in the middle of another arc, to insert the "100 years before" arc about the Vizard's origin.

Not to mention that the Magi flashback arc was far more interesting and had more implications for the story proper.