I'd more or less agree with that.
KDZ knew every facet to his character. There was a vast difference to his Superman compared to the others at Evo. He didn't auto pilot, he had great meter and clash management, everything he did had intention behind it and he knew how to minimise risk. He's a character specialist and you can tell how well he knows his options. KDZ will still be a top player regardless of what happens to Superman because he's established and has mastered fundamentals that other players don't even think exist. Chris G is in a similar boat, but Green Arrow can only do so much, Superman has significantly less work to do when he does open you up.