My first reaction:
"Oh, he didn't do that either, but the State had to get him for something because we can't have people lawfully carrying arms that scare people who ought to know better, so they pinned this bullschiff on him? There's justice for you, sure, uh huh..."
And the law loses a little more respect. The damage is self-inflicted.
First, I think that what and when the stunt was pulled by the defendant was a very poor choice. Legal, but stupid.
I think that the gov had to change him with something just to tie up some loose ends. The plea probably eliminates any false arrest litigation which would make the state look bad.
Secondly, it elimates any charges that could possibly be filed agianst the fire fighter who detained the defendant at gun point. It wouldn’t look good for the helper ‘hero’ to be charged with a felony. Third, it lets all the snowflakes and anti-gunners record the incident as a ‘gun crime’ to bolster the numbers.