I totally disagree.
Firstly, the Governor's power to pardon most certainly IS part of the judicial process. The very reason for such power is to prevent miscarriage of justice.
Secondly, it ought to be obvious that this woman is being prosecuted solely for "bearing arms", an activity explicitly protected by the Constitution. To suggest that some additional clarity is needed before ceasing this prosecution is entirely unwarranted.
I live in the People's Republik of Kalifornia. After two landmark Supreme Court cases, Heller and McDonald, the State has failed to repeal a single gun law, despite repeated justifications used by both the courts and the legislature that no individual right to keep and bear arms exists.
The courts owe to gun owners the same benefit extended to voters when legislatures violated voting rights; the courts should mandate repeal and stay prosecutions until the legislature has specifically addressed their infringements.
You have convinced me. His pardon could be a bully pulpit for following the Constitution.