I think part of it is just that Maine will eventually experience some positive regression to the mean in terms of shooting percentage; as demonstrated previously in this thread, a lot of Maine's skaters have some pretty low S%, and eventually those will go in a little more often.
Sparkee mentioned Nobes, and I agree he's worthy of a shoutout. But I also want to take a minute to give some props to his partner, Jack Dalton. I think he has also shown very noticeable improvement on last year, and he along with Nobes have really shored up the third D pair. I see Dalton as a guy that will keep getting better every year and by the time he's a senior, he will be an excellent player and possibly top pair capable. Kind of like how guys like Holt and Chabrier took big jumps in development and became key pieces. I view Komarov the same way, I think he will also be a guy who grows every year until he's part of the inner core.