This page displays overall status for all languages and all projects, while the front page shows status for Drupal core. The reason this page looks like people don't make much progress is just due to the sheer amount of work they'd need to do to translate all thousands of projects available. Drupal core progress is a better indication of translation readiness, while this overall list is to give you an idea of the higher level status.
To get your group set up here, do the following: Look at the waiting list of languages if you find your language there, follow up on the issue found. Otherwise open an issue filling in your language name. State your team leader username on drupal.org (and make sure you log in on localize.drupal.org as well, so your local user copy is created). Do you have others to work with? Previous work you'll migrate? Tell us about it in the issue.
