The feds will still go after it as an illegal drug when presented as recreational and the will keep the stigma going on forever. Furthermore it will keep a lot of talented people out of good job opportunities for smoking a joint after work instead of having a glass of wine.
While true, an inch foreword is better than a mile backwards. And any movement whatsoever from the federal government is a sign that there are finally cracks forming in the dam.
Rescheduling MJ federally would make zero difference. De-scheduling would be the only meaningful change.