Alan Gura's response in Moore is in. It was a rewrite.
Without calling Cooper a lier, Gura's brief goes into quite the detail of why the 2nd was wrong. Never once does Gura say there is a split in circuits, but he all but lays out the roadmap.
All the while doing this, Gura doesn't hold back in blasting the State for its stance that the right is not worth protecting or even having, if the IL legislature thinks its "safer" for citizens to suffer threats of criminal action, instead of being able to defend herself in the face of violence.