Guhle won't be on the PP because we run four forwards despite the fourth forward not contributing anything all year. Literally the highest scoring fourth forward is Gally at 3 points, then Slaf at 2. We should have moved to three-two as soon as Dach went down. Xhekaj, Guhle, or Barron would all bring more to the PP than Gally, early season Slaf, Anderson, etc.
Then Hutson and Mailloux bring offensive abilities as their main, and only on Mailloux's case, attributes and will never be close to Guhle defensively, so naturally they will eat PP time when they get to the NHL.
This is one area Marty has been bad, the PP hasn't been great and he hasn't even tried to shake things up. He's moved Guhle into a box as a 21 year old. His ES production has been enough to warrant an attempt to see what he can bring to the PP. Barron has been handed a lot more offensive opportunities and is a measly one point ahead of Guhle which was a single PP point with 54 minutes of PP time. Granted it's second wave time with a bunch of scrub forwards.
I wouldn't discount Guhle when one, he's younger than the rest of our D, and two, he's never been given a single opportunity on the PP.