I don't know how old you are, but for me, there was a world of difference in my physical strength between 18-22, and like, 24-25-26 years old, peak physique. They don't even have man strength yet.
I think we're not used to have big bois in Mtl. They take more time to mature, and Dach has had multiple injuries to boot, so a lot of missed dev time. It took 7 full seasons before Kreider passed the 50 pts mark, and another 2 (9 total) before he exploded into the monster he's now.
Patience. We're not winning anything until, at the very least, Demidov, and one of our highly drafted Ds, are difference makers for this team anyways.