It is a physical game. Thanks for pointing that out.
Being quick, fast and talented are all physical traits. Some players use size to be effective, others use speed, yet others use skill. Almost all have to have smarts to excel in the NHL.
Smaller players don't need to consistently score to be effective. Pageau is fantastic without the puck, for example. Mitch Marner, ditto. If they do things that make us have, or finish, more chances than the other team does they are effective. Period. It doesn't matter if they don't hit. What matters is the puck. Hitting, like skating is a tool for getting or keeping the puck.
As for comparing Dahlen to Balcers? As lazy a comparison as it gets. Both slightly undersized and both European. The similarities kind of end there. Balcers is the same age as Dahlen, give or take a few months, and has outperfromed him at every level. He's also had a pretty nice season in the WHL, which last I checked is the most physical junior league in the world. Comparing Balcers to Dahlen would be basically the same as me saying Logan Brown is going to be Joe Colborne, Nick Paul is going to be Hugh Jessiman and Drake Batherson is the next Denis Hamel. Big players never make it but they're OK in the AHL. It's making easy, generalized statements on players based on their size and a very vague set of skills. And it doesn't work.
Maybe we'll get lucky though and some of our big players can turn into some of your favourites from years gone by like Buddy Robinson, Jakub Culek, Dave Dziurzynski and Derek Grant. Then we'll be sitting pretty.