I think he ignores a few relevant aspects of the NRA (they do push education and support, through cheap insurance, the running of gun ranges/clubs) and how brainwashed the hoplophobes are, but he's echoing what many here say about them.
http://globalpolicyjournal.com/blog/18/10/2013/nra-journey-incompetence-irrelevance
disclosure: I actually know this guy through other channels and have spoken to him on occasion.
http://globalpolicyjournal.com/blog/18/10/2013/nra-journey-incompetence-irrelevance
his blog post is a criticism of the NRA strategically, not politically. My view is that, regardless of your politics, this analysis of the NRA’s strategy holds. I assume the NRA is a business that wants to maximise three things: money, membership, and political power. I highlight five areas in which it has done a very poor job if it is truly maximising around these three vectors of performance. I make suggestions for improvements for future management.
disclosure: I actually know this guy through other channels and have spoken to him on occasion.