Because Ultimate is also on hard mode.
That has nothing to do with KirinDave's question, which was, phrase differently, "Why are you using MindCrack when Ultimate adds a whole lot more, and only removes TrainCraft (and REI's MiniMap)?".
Your answer does not satisfy that question, as this thread was already about switching GregTech from hard mode to easy mode, ergo being outside of the bounds as it stands.