The thread is literally "first impressions". It takes very little time to form a first impression, especially when the weakest part of Eureka is right up front.
The game doesn't tell you that partying is required, so you can't fault someone for venturing out without doing it.
The whole thing here is a classic design problem SE has. They seem to want people to have to earn fun, when fun is what we're paying for. Content needs to be engaging immediately, rather than "oh after 10 hours of slog it might get interesting."