Sure, maybe the stealth package and the secret package fit into Galakrond rogue. So what? The deck is probably going to be good, but it’ll get heavily countered by face hunter. Then to counter face hunter, Rez Priest rises up once again. The point of the game is to win, so you can can count on people optimizing their deck to counter whatever’s popular. In this way, the meta is self correcting so you really don’t have anything to worry about.