I'm not sure I understand what you're asking, but I don't really use superman to whiff punish a whole lot at the range. Mostly just whiffed d4's, particularly Sonya and Mileena, and also Reptile and Baraka. You can definitely whiff punish those if you're on point, if that's what you're asking.
In general I just use b3 at that range, since it's a full combo as opposed to 10% and it's safe on block if I misjudge or mess it up somehow. A properly spaced b3 will beat out most pokes, except for the d4's mentioned earlier, and in most other situations the extra 5 startup frames on b3 compared to superman usually don't matter that much. More of my superman use for whiff punishing comes from when I teleport behind them as they use a forward advancing string. Other than that I mostly use superman to punish stuff that leaves them far vulnerable but far away on block, like Blade Charge or Force Push, or when they jump or for some reason whiff or do something stupid full screen.