Pressuring the the league into knuckling under to the officials' demands will not greatly improve the quality of the game, possibly not even in the short-term (as the replacements get better, and the unionists' skills deteriorate with unuse), and it will be another cost to be passed onto the fans. And the officials' union will gain clout, prestige, moral authority, whatever you want to call it, and officiating reforms will be even harder to put through, as the union resists anything that might embarass or replace its constituency.