That was a typo I corrected, it was 4 in 16.
As far as the second part of your post, I'd say a few things: Zadina probably would be tearing it up in the AHL. So what? Does that mean he's a good NHL scorer, or that Berggren won't be? Zadina was a better AHL scorer than Bertuzzi, and?
Berggren will score more in the NHL than Zadina for a few reasons. One, he doesn't rely on his shot for points. He's a playmaker, and when he moves to the NHL he'll be passing to better shooters. Zadina, on the other hand has zilch for primary assists. Two, he's a MUCH better skater which (combined with his passing) should help him score more in transition than Zadina does. Third, Zadina sucks on the powerplay. He's a one trick pony (one timer off the flank), and that trick doesn't work in the NHL because his shot isn't very good. Berggren is a nightmare on the powerplay because his edgework is sick as f*** and his passing is elite.
I don't care about Zadina, personally I'm blown away that a guy who's done SO LITTLE gets so much discussion from this fan base. Conversely I'm excited about Berggren because he's a lot of things Zadina isn't. But he will DEFINITELY score more, you can mark that down.