Drupal is more a result of a strategic choice. For example for people/organisations that has some sort of strategy for how they are going to (re)use and grow with their data (and competence) in the long run. If you only need a modern blog, Drupal is overkill. For a web site or community that is setting up a solution that shall offer blogging as part of other features, however, it is more relevant to consider Drupal.

An aspect that should not be taken lightly, is the nature of open source when it comes to staying on top of all bugs and security fixes. A blogger that cannot administer security issues alone, might be in the situation where it is a choice between a free Wordpress hosted (and maintained) blog, or paying for a maintained Drupal site somewhere.