The acquisition of Newhook in my opinion was the habs effort to get some under 25 top 6 talent on the roster.
The team really only has Slaf, Caufield, and Nick as top 6 players. Adding Dach, Laine, Newhook was an attempt to fast-track a second line with some potential to not put everything on the former 3's shoulders.
Has it worked out? No, but the attempt is admirable.
You need to think that if those trades dont happen, the top 6 is literally Slaf, Caufield, Nick and no one else for the last three seasons.