Well, no, because if you aren't a fundamental moron you realize the Fatui are the most obvious "We are villains but we are fighting a worse enemy and our goals align time and time again" and the Traveler literally considers him a friend, the same with Arlecchino, Wanderer and Sandrone. So yes, took a villainous role that is taken away when the situation calls for it, which is literally every single appearance post Liyue.