It does set the stage for states to issue similar pardons. Although red states are unlikely to do so, I believe it will have second-order effects that do pressure red states.

A large part of The War On Drugs was the top-down messaging villainizing possession and use of cannabis, and that same power is now being used in the opposite direction to some extent. Combine that with an aging baby boomer generation, and you have youth growing up in red states today who are much less likely to believe that folks should be put in jail for possession.

Next the purple states will adopt similar language and policy, then the idea of criminalization well become an outside/extremist/fringe policy and – my prediction – finally within a decade or two even many red states will be decriminalizing cannabis as well.