Thing is though, eventually they would HAVE to answer the question of whether or not the Taelons were good or bad for Earth. I don't know if the Jaridians were part of the original arc, but assuming they were, establishing the Taelons as the lesser of two evils would have been natural. They just jumped the gun.
Then changed it for an air rifle.
Then threw it away in favor for a cool-looking foam sword.
Then threw THAT away and tried to make the Atavus look cool.