Trading Joe should be one of those big prick moments from fo, and an idea that i hate too, but from a basketball perspective, he's not impactful on postseason games, against different teams, both in terms of level and schemes, as a playmaker he can't exploit switches nor blitz, and as a defender he can't be a stopper on guards or wings nor rebound, and he's not a scorer either.
What in hell is his value, or the value of a Bogdanovic who can't dribble, or a Favors who can't jump, that's another question, but at least his contract has only one year left, so it should be easier to move.