The article admits, "GC policy assigns to the union conferences the decisions about which individuals to ordain as clergy." It therefore admits that unions derive their authority regarding ordination from the GC. 

Think about it: If the article is correct about the 1995 and 2015 votes, what were those votes even about? Divisions deciding whether ordination of women could occur within their territory, but that has nothing at all to do with whether unions can ordain women? There is no possibility such a contention makes any sense.