Still, it will set an example for the blue states to follow. That's something at least. Red states would probably be less likely to do this just based on where the example is coming from. It's progress of a sort in undoing a grave injustice.
What's odd is that there hasn't been a push for clemency/pardons when legalization happens.
I don't care about marijuana, it's never been very interesting to me, but it's absurd the amount of human capital that's gone into stopping it and sigmatizing its use in this country.
There absolutely has been though.
California: https://www.pubdef.ocgov.com/programs/dismissal-and-re-sente...
Washington: https://www.nbcnews.com/storyline/legal-pot/washington-gov-i...
Colorado: https://www.colorado.gov/governor/news/6986-governor-polis-g...
etc. etc.
These are things that have happened decades after legalization!