It accurately represents at least 60% of the group projects I was involved in school, though usually the rule wasn't 1, but 2 people that cared with most others not caring. What it taught me is that the most important thing to be successful in group work is to be able to select the group members.
yeah, I think that is closer to what it teaches. I think there will be at most 2 or three top people in the project, and then some lesser contributors who are skating - maybe because they are not that interested in that project and they are the leads in some other project that is running concurrently.