It has everyone else optimistic too. TV Line moved Community from "too early to tell" to "could go either way" to "a safe bet" just a few minutes ago.
Community is also sitting at 84 episodes. So, if it gets picked up, look for Sony to push for at least a 16 ep order instead of the normal 13 for a short season.
The problem for Community though is that NBC gains nothing from its post-first-run avenues. Sony is the studio, NBC only captures ad revenue. So some sort of ratings still need to justify their existence.
But I agree it looks good for them. NBC still needs to fill programming hours.