If that is true in the movie then I sure hope it is well explained rather than just assuming that I or anyone else is familiar with this idea or attribute of Krypton. All I have ever known or seen is that Jor-El was the one person with the foresight to know the planet was doomed and saved his...
My biggest concern over how this plays out is the possible notion that somehow a civilian who has hidden and rarely exercised his full capability is going to take on 3 trained soldiers, to whom Superman is just a normal untrained man.
That "Maybe" sounded cutoff in the trailer as if it was part of a larger sentence like
Maybe that was God's plan.
Maybe it was their time.
Maybe you should have but you can't save everyone.
I think that was a clever edit to misdirect the actual conversation since the clips on the screen were...