Disney also said Iron Man 3 was a phenomenal and smashing success, at a slightly lower budget and slightly lower (projected) box office take @Lawlight.
What makes a success isn't just down to budget and box office. It's down to expectations Disney has for each individual franchise, and each individual movie in that franchise.
EDIT: to further illustrate my point, Guardians of the Galaxy was considered a breakout hit and had what was considered an incredible run at the Box Office, at a budget of 170 million with a BO take of 770 million. If Civil War wants to have the same ratio between budget/BO, it needs 1132 million at the Box Office.
So clearly you can't just take expectations for one movie and randomly apply them to a different movie to pretend it flopped.
