The problem is that all there was to I-No was her execution. Her gameplan is pretty straight forward and I dont really see how that changed/changes with Xrd, meaning that if you take away her execution, or to some extend reduce the difficulty, the character becomes significantly duller. Especially considering that execution is all I-No really had.
All I saw I-Nos do to this point is spawn a note and go for a low/high mixup. Nothing changed, its just easier. If they had at least adjusted her gameplan by making dives better crossup tools or something, I could understand the changes. But as it stands they didnt do anything else but to remove the challenging part.