We are told that Lois Lane visits the future and returns three weeks later with no memories of the future. The present is not a place that can be returned to three weeks later. It is the time from which she departed and she did not return to that time. She traveled three weeks into the future, which would explain why she had no memories from any further future.
Of course, we are later told that she did travel a year into the future. While she is in that future, Clark tells her to travel back into the past and prevent this future. He cannot coherently believe that the moment in which he is speaking and which therefore exists can be prevented from existing.
A Justice Society that was so low key that Daily Planet reporters had never heard of it? They are shown with perfect fidelity to the originals.