OG Master makes for a better antagonist in the end. Matter of fact, OG Master is one of the best Villains ever created. The Enclave is a bit vague. Sure as hell they wanted to make fun of self-righteous, dogma-driven, militaristic, nationalistic, demagogic authoritarians(not only the US, btw), but you need more than that if you want to make a good Prime Believable Evil. After all, with a mere speech check and a single c-4 you turn them from hero to zero. Kinda meh.