Ah yes, the fight Mr. X had with Iron Fist:
That's true. But many posters have been debating whether or not X can read thoughts or neural impulses or whatever. They say that even getting into a flow of some sort, not thinking, but reacting, getting into "wuxin" or "no mind" (無心) may not work against X.
I'm calling that out though. If there's anyone who can get into the deepest levels of "no mind," I guarantee you, Shang could.