I see it differently. I believe the team can be back near the top next season, and Miller is exactly the type of player they need. He plays a physical grinding style and has 6 points in 6 games. Chytil is one hit away from his career ending, Kakko is a solid 3rd line winger, but they also got a solid dman back. No one has been more critical of Drury than me, but I think his moves starting with Trouba have been solid.
There are two issues though:
1. This is what should have been done this past summer. He was late to the party, because he's not good at his job.
2. It's the next moves that matter. I will 100% agree with you on the Miller trade if Drury cannot take the steps necessary to get us back in a good position for next season. And not because of what he gave up for Miller, which frankly was not much, but because it's a waste of cap space and a 1st rounder if you suck anyway. He must fight the urge to cling to false hope this season, and be a major seller at the DL, focusing on next season. He needs to have confidence and balls and make some team dynamic changing moves, which unfortunately are traits Drury has yet to show he possesses.
If he wants to show he has balls, trade Kreider, Fox, Miller, Zibanejad, Lafreniere, Panarin. Deal at least one of those guys, and you are impacting the core for real, and that's what is needed. Not saying they all can even be moved due to clauses, but that's the kind of dynamic changing move(s) needed.