This makes sense because between Bruce Wayne’s “dream” / The Flash coming back to warn him that Lois is the key in Batman v Superman: Dawn of Justice, DC seems to have already established this storytelling strategy in their camp.
Which means both good and bad news for fans of the DC Cinematic Universe.
This almost sounds like DC Comics is employing the Marvel tactic of introducing a character in a current film, only to give their origin a bit of a flashback element to it.
From what we understand, this same sort of approach is going to make its way into next year’s Black Panther, only there seems to be the addition of flash-forwards into the mix.