7 teams yet to score - Vegas, CBJ, Toronto, Boston, Flyers, Habs, Tampa. 6 teams with at least 1 goal but sub-20% - Canes, Jets, Nucks, Arizona, Pens, NYR. 5 teams in 25-20% range of good normalcy - Florida, Caps, Blues, Wild, Colorado. 6 teams with 30% or higher - Dallas, Oilers, Flames, Preds, Hawks, NYI.
Obviously not a lot of teams on that list ran much below 19% during the regular season and some of those that did are now running super-hot - Predators, Blackhawks, Islanders.
So yeah, I think it's fair to say a lot of teams aren't where they'd like to be with their PP yet.