DCNU was pushing himself to find the limits of his strength. Pre- Flashpoint superman hasn't as far as I know. Since his strength was dynamic, he should have been able to do what dcnu did. He did pulled earth with a skyfather level being pushing against him. The Hal's contraption was a harness which allowed superman to get a grip on the planet and it also prevented the earth from ripping apart between the 2 opposing forces. Too early to tell imo.
Pre-Flashpoint still has the feats advantage over DCNU. One impressive feat does not a career make, Pre-Flashpoint Superman has been doing incredibly impressive feats for many, many years that are on par or better than the one DCNU performed.
Give it some years let DCNU get some feats under his belt. It shouldn't take long Superman tends to be a feat racking machine in comics. It's one of his niches.