The point isn't that giving a duress pin is the same as physical assault, or that the duress pin feature is a "booby trap". It's that for the purposes of ascertaining guilt, you don't get a pass just because you're not the person that physically initiated the action.
Then construct a better analogy, or better yet don’t rely on one at all
Easily illustrated with the comparison to burning a piece of paper with evidence in front of an officer trying to obtain it. Though even though the “guilt” there is the burner’s, that there is any guilt to assign at all depends on whether the law had jurisdiction to that paper in that situation.