I honestly don't know if the Howden stuff is overblown.
He has been having tremendous difficulty simply handling the puck this year. It's not puck luck that has kept him off the scoreboard this season, that's for damn sure.
The difference between Rooney and Howden (after the first half dozen or so games, where Howden actually looked quite good) is extremely noticeable. Maybe none of those other lower tier guys are able to do as good a job on the PK; but with how bad he has been at even strength, I think it should be worth trying it out at least.