This is another one of those life lesson moral quests stories. Basically we are supposed to learn the lesson not to just blindly follow orders , but to think about the overall good of the many and having a moral compass, whatever.
THe team arrives on a Goa'uld training planet where the cadets have been training for the past 5 cycles none-stop. They just follow the rules of engagement and blindly continue. It sup to the team to free their minds and send them all back home.