Nucks fan here just to pitch in. This is very true. Kassian isn't the player you'd love him to be with the tools he has, but that doesn't mean he can't be a good player. He's an alright skater with really good hands. He's more of a playmaking winger with a big body able to use it to keep the puck away. While he doesn't really have any rushes to the net, he can find his way into open space or make plays to teammates who are.
He never worked out in Vancouver because our coaches always insisted he plays the crash and bang game, which just isn't his style. His best games by far were games where he was given the freedom to be himself and just focus on protecting the puck and making plays.
I wouldn't say he's great or terrible along the boards, just about average. Although he's not the fastest skater, I think he can keep up with those that are. Put him near the bottom of the left faceoff circle on the powerplay and he can work off the system to either set up passes from the goal-line or play the screen and create havoc in front of the net.
I don't know how much of his post-whistle antics were him or his coach telling him to get involved. He obviously has an edge to him but with McLellan, I think it could work, especially when you look at how many big bodied players with soft hands he coached in San Jose. Best of luck, hope he works out in Edmonton.
Cheers.