This episode solidified my impression that BG was basically a comic book. Don't misunderstand--I LIKE comic books. I LOVED Men In Black! But the idea that the fleet HAD to go right past that gun was totally silly. Why couldn't they just go way around the back side of the planet? Answer: there is no reason, except in a fantasy universe where the rules are whatever the writers say the rules are. But, given the comic book rules of reality, it was a fun episode to watch.
