Time will tell if this was a pointless trade or not. My opinion is any rational hockey fan would see this team just doesn't have Cup potential, so Miller really doesn't change much at all. Especially if the team looks different next year.
Cup winning teams needs their lineups full with quality. Kreider and Mika are seemingly past the event horizon, so they are out of the running to contribute. Panarin, good, goalie good, Fox good, and now Miller should be "OK". Other than that, this team does not have the goods. That is it, the team has only 4 players that are "Cup quality".
So next year we will be better? But how much better? There is no projection for Laf or Cuylle to be TOP players or all-stars. The defense is bad, straight up BAD. Lindgren being moved and being replaced turns the odds from BAD to not-as-bad.
Young players take a long time on average to contribute unless you get insanely lucky. Trades for mid players will just be more mid players who might be slightly better.
Realistically, next year, this team will fight for a WC spot and not even guarantee it.
I really really hope not, but this trade really does nothing for Cup chances. Maybe make the playoff prospect this year a bit more attainable? OK, sure. Maybe a little bit more attainable next year for a WC? Sure again. But ultimately, pointless for any Cup run. Team needs a complete overhaul.