There was a Canucks fan who posted on the NYR boards a few weeks ago. I couldn't find the post but I'll do my best to recap.
Paraphrased, he said:
Av's system is very hard to learn, Vancouver fans would give new players 2-3 months to adjust to his system.
It relies on many quick decisions. In the defensive zone, your decision relies on many observations such as whether the shooter is a righty or a lefty, etc.
It is apparently much more confusing than other NHL systems.
I'll give the players a few more weeks before I start calling them "dumb"
.