It's time to re-evaluate the strategy and goals of the Examples Project on Drupal.org.
The project had its origin as documentation examples, but they were buried in an obscure place in the CVS tree and had no executable format. During the D7 cycle we dusted them off, added tests, and put them into a maintainable place where they'd be automatically tested and were maintainable. Loads and loads of examples were added, and lots of things were improved. Lots of people put hundreds of hours into this, and the entire community appreciates it.
However, I think it's time to re-evaluate the maintenance of this project, and to talk about how it should be structured long-term. I personally am not committed to maintaining the new 8.x examples and changes that need to be made, and other maintainers have not been able to keep up either. The result is that testing on the 8.x branch has been broken (theming and render, contextual links) for nearly six months. And all that is before the real changes in 8.x core kick in.