That very well may have been the most poorly argued decision I've ever read.
Either the court wants to for the state to lose the appeal, or they're blithering idiots.
The latter part is exactly the argument against semi-automatic handguns which Heller rejected, and the former part has been addressed by McDonald. This argument seriously seems tailor-made to be bad.The conduct at issue in this case falls outside the "core"
of the Second Amendment, insofar as the defendant was not using
the stun gun to defend herself in her home... and involves
a "dangerous and unusual weapon" that was not "in common use at
the time" of enactment