Doesn't feel like there's a loser in this trade, both teams get what they want.
Vancouver gets the right handed 2C they needed who can PK, can be on their PP, take draws, and be good defensively. Obviously the hope is he can thrive in a new system with new linemates considering he's been having a poor season by his standards. His play will likely dictate a lot of how this trade is perceived in the short term.
If he struggles, it will be rough for the Canucks, but he's an upgrade on that 2nd line even while having a poor season by his standards. See how he fares this season and, if possible, discuss a resigning in the offseason. Can see us moving out players with money to get it done should he have a great end to the year/postseason run.
Calgary gets a lot to like in this deal, and value wise probably comes out on top if things pan out for the pieces. The 1st is likely later but picks are always nice and welcome for a team struggling to compete. Loved Kuzmenko and his personality + electric play will be sorely missed. When he's going, he is a fun player to watch. Wish him the best in Calgary.
Brzustewicz is having a stellar year right now and has great potential. I've seen many people go back and forth on his value since being drafted and having the season he's having. Haven't seen much, only read reports but he sounds very promising and will be a loss for the Canucks blueline future. Not a sure thing though. I did see a couple games of his, but it was pre-season at the Young Stars tourney and watching him... I was very unimpressed at the time considering how many liked the pickup for a 3rd rounder. But since then he's been popping off. Has the potential to make the trade look silly eventually.
Jurmo is not much of a loss. If Calgary thinks they can get something out of him, great. But I've followed him a bit and he's just not it imo. Even my friend who I'm almost positive was the biggest Jurmo fan for a while after he was drafted and watched quite a few of his games gave up on him in the last year or so. Would not count on him being really anything, likely wasn't going to be signed by Canucks.
All in all, Calgary probably wins in total value if Brz, Kuz and the 1st can all pan out well for them and turn into tangible pieces for their future. Vancouver gets a key piece for their playoff run. The future can make this trade look good or bad either way depending on quite a few factors, but looking at it right now, everyone gets what they want