Yeah, you need to kill a worthy target if you want to get any Jagganath points: the more you have, the harder it gets to get more. Jedi are very worthy targets, apparently, but hardly the only ones.

Though the episode is definitely lacking, since most of the EU makes it clear that the challenge and the hunt itself is an important part: as said by others, this is essentially the equivalent of rich americans buying themselves/their children a kill. Wouldn't be that many points in it for any self-respecting hunter, unless they're literal novices.