You need to go back and rematch man of Steel. It wasn't just the sun it was also the atmosphere... Do you remember he loses his powers when he enters krypton ship because of air composition... That's not suitable for humans but perfectly fine for superman. And the codex was just absolutely stupid. No defending it.
And the Phantom zone, everything is getting instantly sucked in... Except lois... She free falls to earth.... Because ya know, she's denser than a black hole...
And the Phantom zone, everything is getting instantly sucked in... Except lois... She free falls to earth.... Because ya know, she's denser than a black hole...