Yea, I'm pretty convinced you could have put any top defense prospect in the world on that Kloten team and they would've struggled to put up points.
Kloten completely imploded from last season to this season. Last year their point leader was a 2 way tie at 49 points, and Reinbacher was 2nd in points for defensemen. This season their point leader only had 29 points, Reinbacher took 1st for points by defensemen, and the defensemen that beat Reinbacher's point total last year went from 0.66 points per game to 0.19 points per game.
So it's no surprise we didn't see a progression in his production considering the state of the team. If he was playing in the O then I wouldn't be surprised if he was a PPG player.