This does seem like it'd be pretty powerful and the option to choose whether to haunt Kyle or Han gives a ton of flexibility. Kyle is beast on his own and will likely draw a big target on his back vs Han so he can shoot freely for a while while Kyle dishes major damage. Either way Jaina should be able to run around and when she isn't focused on she can crank out decent damage.
So if Kyle is haunted Han combines with the scout and very likely hits his opp and gets a free -4 defense for his other attack.
Very nasty combo