I think you've gone down a rabbit hole of looking at too many of these analytic sites and it's impacting your ability to objectively look at players.
Kirby Dach is well ahead of his draft class in development and does not look out of place on the Blackhawks, in fact he was playing top minutes in the bubble. It's too bad he broke his wrist because we would have seen how he compared to his peer group at World Juniors and been super impressed. Is he going to be a scoring powerhouse? There's definitely indications he has a scoring touch but what's really impressive about him is the indications that he is going to be an all-around centre that can play on the PP, PK and against top matchups. Match that with a scoring threat like DeBrincat who is only three years older and you have a very, very good future pair.
All those charts showing other players are better and more likely to be NHL stars? Ok. Get back to me when they make the show. If you compare that guy's charts at the same point, Dylan Strome is much more likely to be an NHL star than Kirby Dach. And yet ...
Edit: Here's the cards