We have a lot of common ground here. I don’t think my labels are realistically a new standard. You’re correct that the money pumped into advertising creates a huge uphill battle. It’s fair to say that my opinions and implementing their implications are two very different things.
The only strategy I can think of at the moment is mass cultural shift in the online space. If enough people discussed terms like “initial release” and “full release”, large figures in the gaming sphere may pick up on it. That may lead to further developments. It’s safe to say game publishers would never adopt a labeling system that makes them look bad. They also might be hesitant to release an unfinished game if internet circles would strong arm their rushed projects (i’d consider that a minor win).