Logic doesn't quite work that way.
That a line was drawn in this question simply avoids questions that are relevant on that side of the line but not this side. The issue at hand plainly does NOT involve a state-regulated militia, and questions regarding a state-regulated militia are not relevant.
The specified condition may indeed not be relevant; so long as the question is built on that condition, questions of relevancy of that condition are not important to the issue at hand and can be avoided.
Wouldn’t it be reasonable to assume that Joe Blow is not affiliated with a state-regulated militia, because there is no such thing as state-regulated militias?