This fits more like a suggestion that a code bug. I'd suggest removing the word "open" in the description to fix this. But if peeps still want that "move to random OPEN area", it could make those cards with that skill better and prolly more OP.
It shouldn't be too hard to alter the code such that the target card will be moved into a random area while not taking its current area in mind. From what I've seen, the current mechanic picks up all cards and then moves them randomly. Of course, with that, all areas are OPEN, hence making the decription "random OPEN area" pointless.
Either easily change the text description, or change the mechanic to fit the description.
But in the end, sad fact: the majority won't actually care much about this.