Well targeted mean something chosen, in cases of Rain of Fire, Plague, Fire Shield and etc... is colective effect and aims everything of the opponent, will work normal against Time Warrior.
Status do not think this high, as compare with GotP it 's -1 | -1. I do not think its very strong ability because it may delay my game any skill the opponent turns virtually an infinite RT against a deck like this.
and yes the text can be "Time Jump: When targeted, this creature returns to the top of your deck." will change later