Just skimming over the article, it seems to me that the framework authors are trying to do something similar to Routes in Rails or Pylons (http://routes.groovie.org/).

Actually, I find Routes' much clearer and easier to use (regular expressions and readability don't go very well together, IMO) than Django's URL-scheme. The url-generation feature of Routes comes in handy, too... don't know if Django has something equivalent. Granted, regular expressions may be more powerful, but I am willing to sacrifice some expressiveness in exchange for ease of use and improved readability. So, I can see why the framework authors ported that functionality (sort of).