Some of this issue has some elements from how the "Superman: The Animated Series" started. Teen!Clark is shown the rocketship and he activates Jor-El and Lara's holographic message on the same day. I know a fair amount of S:TAS made its way into the comic books, but this actually works a little better than Clark not knowing for years and angsting over it.
IIRC, the Clark of the "Lois and Clark" series didn't know about Krypton until the 4th or 5th episode, but wasn't bogged down with angst over not knowing his origins. (L&C also had "Clark wore glasses *before* he decided to wear a costume.")
I'm still hoping we'll get "Clark Kent: World Traveler," as that part of MAN OF STEEL was kept in BIRTHRIGHT.