Because he plays a lot. That's easy maths. I like him but we will never win a cup with him as your 1st d-man.
I just don't see the point of your post.
Jeezus. I'm a neutral here (fan of the former team once known as the Arizona Coyotes) and I'm offended by your post on behalf of other Habs fans.
Hutson is young. There is EVERY chance that in the next 3-5 years he'll figure out how to play D in his own zone (and in the neutral zone as well). If he does that while at least maintaining (most likely developing) his offensive instincts, he's at least a top pairing D and most likely a legitimate #1.
Meanwhile, the Habs won't be competing AT LEAST for the next 3-5 years and maybe more than that. So Hutson has at least the next 3-5 years to improve, he'll have every chance to work on his defensive game because he's already earning a regular shift. If he sorts things out during that time (which imo is rather likely) most likely he'll become a true #1 by the time the Habs are ready to compete.
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In the meantime, "I just don't see the point of your post" because it seems you're assuming Hutson can't / won't improve from where he is right now, which is a 20 year old defenseman playing hard minutes in the NHL. Which is already quite impressive, most D-men his age aren't even playing in the NHL let alone showing flashes of offensive dominance. The way he's playing so far in his career should be celebrated by hockey fans across the league, not just by Habs fans.
Assuming you're a Habs fan, you need to do better. You have a very good young player in Hutson.