You're assuming the character data isn't linked to stat data isn't linked to graphical data. If it was that easy they would jut put in a "hide" flag to anything they don't want displayed.
Its likely that the item data is linked to character data is linked to stat data is linked to graphical data, if they simply hide the item it would probably negate the stat data. which is why its not a simple fix. They'd have to write a display bypass while keeping the stat, assuming that a bypass function would work in their current code. It maybe they'd have to rewrite the whole thing to put the hide function in there. And again we don't know how deep the module is written or if its embedded inside another module.
