Except, who thinks Lois has never met Clark Kent? It is known she was in Smallville? That is where she joined up with the military. So maybe people do know that she has met Clark Kent, who for all we know may have been working for a bit at the Smallville Post, and Perry said "this new guy Kent in Smallville, writing these articles the AP picked up on the Battle of Smallville, he has realy talent". I mean, we don't really know how much time has passed since the battle.