I think maybe I don't understand what you mean. When traffic is stopped or almost stopped you are talking about riding about 5-10MPH faster than them weaving through.
We did that with regularity until they started giving us tickets. Then they said we could use the shoulder so another habit was established. Would the shoulders not be safer if available?
Everything I see on youtube from California is just balls to the wall crazy stuff. I guess that also forms opinions.
You are right, it would never pass in the Northeast.
