I honestly think you're absolutely right. Some people have pushed through our "unreleased" status and have learned quite a bit anyway. The guy who wrote these tutorials is not one of urbit's primary devs, but he still managed to get a pretty decent grasp on the system, and he even wrote some great doc.

We're generally quite responsive on the urbit-dev mailing list, and we're making a concerted effort to be more helpful everywhere. Urbit is one of those projects that can't succeed without a community. The pace of github pull requests from outside contributors is increasing, and more and more docs are coming out, both from the core dev team and outside contributors.