Admittedly I hadn't looked at the upcoming market until now. Yeah, it's empty, aside from a few okay choices that would have been pretty good choices a few years ago. I would be more than surprised if the Devils got St. Louis, so I suppose Mats would have been a good option before he re-signed. The 25-30 points is more of a hyperbolic low blow at what the Devils have done to free agent forwards in this league (not that the team could necessarily have done anything to stop these players' decline): Ryder, Clowe, no-name, Shanahan, etc... As of now Zuccarrello is a one-note forward on a good team. On the Devils he would be a fish out of water and the central target of opposing teams' defensive strategies. I'd be surprised if he eclipsed 40 points in NJ. And he plays very little on the PK (though I am sure Lou would see to the end of that).
He'd be the Devils' first option on the power play, he'd get a lot of points doing this alone. The idea of targeting or whatever isn't really borne out by evidence.
Ryder is a guy who is no good with the puck. He needs other people to get him the puck. Zuccarello is a guy good with the puck, he would've done fine here. As Jagr was and so on.