The thing I've noticed with DeBrincat is that he doesn't play with that edge that you see in a lot of undersized players, there's not really any "jam" to his game. He'll play hard for the puck, take contact and skate hard but he definitely stays within the rules and doesn't have that pest-like edge that some smaller players bring to the table.
You definitely won't be calling him soft, but between whistles you won't see him stirring up any trouble or trying to get away with anything subtle behind the play.
Not trying to sway anyone's opinion with this point saying this is good or bad, there's just a lot of comparisons to smaller players that have that chip on their shoulder and that's not part of DeBrincats game as far as I've seen.