I agree, but if the feedback is accurate as to why the R&A and USGA banned the anchored stroke it had to do with R&A concerns about the anchored putting stroke gaining popularity on the European Tour as it has on the PGA Tour. If this is accurate, the decision wasn't made based on what's best for golf as a whole since non-pro's are the majority of those who play golf.
What the PGA must now do is consider the position of the pro's, the non-pro's, balance that against the recommendation from the USGA and decide what is long term best for the sport in the United States.
Good point. The other thing that is vastly different between sports is that there really isn't one solitary governing body for sports like football. The NFL makes changes to their rules and does not have to consider the interests of anybody else. (I'm not counting the fans as anybody else, because obviously, the fans are part of their interests) College does the same, as does high school.
Many people talk about one of the beauties of golf being that it's a game with one set of rules played by all ages and abilities everywhere. No football analogies, basketball analogies, or the like will ever compare fairly because the effects of the rules aren't very far-reaching.