Wait with baited breath on this on as it is a Federal trial judge that has made the declaration. This will most definitely be appealed to the Tenth Circuit and, I suspect, the U.S. Supreme Court. The thing to note is that rulings of a trial judge are only binding in the jurisdiction where the ruling was made (i.e. Oklahoma's Federal District Courts). The ruling is only persuasive or advisory authority elsewhere, including other Federal Districts such s the District of Delaware and at the State level. That being said, don't go buying a bunch of weed to keep in the house thinking that this will give you a blanket of immunity from prosecution.
Stay safe and vigilant.