I am not that familiar with them, and they may not allow blogging in minutes, but I believe systems like Drupal, TYPO3, and Joomla are in the ballpark of providing platforms as flexible as Wordpress.

I'd be very happy to hear from folks more familiar with these tools.

https://en.wikipedia.org/wiki/Drupal

https://en.wikipedia.org/wiki/TYPO3

https://en.wikipedia.org/wiki/Joomla