Husso had negative value. It would have probably taken a 3rd or 2nd round pick attached to get rid of him.
He went for Future considerations though. So it’s the Ducks that must have asked for him and his 5M$ salary. Two reasons : there’s a goalie on his way out and/or a player with a big salary on his way out (cap floor).
Either way, the Wings are probably up to nothing. The Ducks are probably up to something big. But nice try!