The state had no standing in this case, since the state was not being sued or prosecuted.
Mr. Miller had standing to present evidence that his shotgun was a militia-type weapon, and was therefore one of the "arms" the individual ownership of which is protected by the Second Amendment, but he didn't show up.
State-appointed officers from the state's organized militia could be called to testify whether the weapon was suitable for their state militia. Do you need standing to testify?
That's what we're talking about, you know. Pay attention.
"Mr. Miller had standing to present evidence that his shotgun was a militia-type weapon"
Whatever he says means that the way it is? Golly gosh, I wonder if he'll say his weapon was a militia-type weapon? Gee, what do you think?
Mr. Miller defines for his state what is a militia weapon and what isn't? He makes that decision for the state militia?
Hell, as far as we know, he wasn't even a militia member! Yet he tells the lower court and then the U.S. Supreme Court which weapons are protected from infringement by the second amendment.
You stickin' with that story?