I took a quick look at the last 3 seasons of data including this season (so from 18-19). Obviously there are more factors that need to be taken into account than just the per 60 numbers but it is pretty telling how bad our guys are on the PP. They would certainly receive a bump by being on better units but they're all part of the problem why our units are so bad.
Of all dmen who have played at least 100 mins on the PP here are where our guys rank:
In points per 60 minutes:
Lindholm 4.33 points per 60, 38th out of 92
Hutton 3.47 points per 60, 63rd out of 92
Shattenkirk 2.98 points per 60, 84th out of 92
Fowler 2.87 points per 60, 85th out of 92
In goals per 60 minutes:
Lindholm 0.58 goals per 60, 54th out of 92
Shattenkirk 0.53 goals per 60, 59th out of 92
Fowler 0.51 goals per 60, 64th out of 92
Hutton 0.43 goals per 60, 73rd out of 92
Hutton's data comes from 18-19 with the Canucks where he was on the second unit. Hampus is the only guy with half decent production and he's a guy I want nowhere near my first unit. All three of our PP guys are realistically second pairing options and ideally they wouldn't even get second unit time if we were any good. Cam makes up for his poor numbers by being great at gaining the zone but once it's in there he's the worst of the lot at actually producing with the extra man.