Oh, so maybe we'll sometimes get 5 minutes of Superman action in between generic teenage bullshit you can find in the average CW show. Add a few minutes of setup for the villain, and almost 10 minutes of a 40 minute show could possibly be about Superman. Well, I guess that technically beats Lois & Clark, but Superman/Clark and Lois should get the majority of the screen time and plot, so the problem with the show stands. They should have just stolen the title of a recent DC comic and called it Super Sons (which I know was about John Kent and Damien Wayne, but the title fits here, too), since at least the show wouldn't be false advertising.
It would still be teen drama shit, but it wouldn't be lying. It also wouldn't draw in as many people though, so the lying title makes sense from that perspective. Not a lot of new viewers are going to give a CW show a chance if it advertises that its literally just a generic crappy CW show with a bit of a Superman themed paintjob.