I don't understand the "Drupal is hard" mentality on HN. Drupal is just as simple as WordPress to deploy. Unzip, plug in database credentials and go. It's better with composer, but there's some real prejudice against it. Drupal 7 is admittedly too complicated but the new Symfony-based Drupal is fun to develop. I used to use WordPress and after the first few months of Drupal I realized how much better it was at, like, everything, than WordPress is. It's been buttering my bread for 6 years now and I think it's better every release.
Drupal has gotten more difficult for 'ordinary' people to deploy. That's a big reason there are many times more sites still running Drupal 7 than there are running the current release: https://www.drupal.org/project/usage/drupal
The complexity compared with something like WordPress is a big part of the difference in install base. Drupal powers under a million websites (I run 3 of those). WordPress powers something north of 450 million websites.
It's hard to upgrade from Drupal 7 to Drupal 8, but it's really not hard to deploy anew. The "Drupal CMS" initiative is trying hard to lower the already low barrier to entry.
it's sad python, rails,node never had a rival platform to replace WordPress over the years, long live php for the web