Is it any different if you are doing this in bad faith? The picture posted mentions "Is this a real business? Yes it is. But for legal reasons, Dumb Starbucks needs to be categorised as a parody artwork". So they are clearly aware they are trying to get around copyright and this is probably pretty good evidence that they themselves don't really consider it as a parody artwork.
But would that actually make a difference if/when this goes to court?