Oh, it should be an easily achieved target, even if a bunch of 1s get rolled across the rounds. The target number is a direct reference to the film that inspired the game, else I'd have tried to make it more balanced.
That much I got, but fair! Yeah, maybe I'll play with a more balanced threshold since I'm not sure any of us would get the reference (I for one have yet to see the film), but at the same time I don't mind letting the players meet their goal even if that means making it trivial. Thanks for clarifying the rules and intent!