I think some people might think this about the forwards. I don't think anyone has this stereotype regarding the Canucks defense (though "perimeter" isn't typically a critique of the defensemen)
Some forwards have to pick their battles more than others (Garland, for instance, due to size) but I don't really think that's true of the the majority of the team. Garland consequently also has the highest takeaway:giveaway ratio on the team.
Elias Pettersson had 125 hits - more than any Canucks defenseman except Zadorov - I think there's a stereotype that needs breaking there.
Miller had 200+ hits this year, and Joshua, Podkolzin, Lafferty, Juulsen, and Di Giuseppe all hit at a higher rate than Miller.
The Canucks generate a solid amount of traffic. It's part of their gameplan. I don't really think it's a major issue.
I know Kuzmenko isn't on the team anymore, but I believe he led the league in deflections last year; it's in their repertoire.