Thanks for this well written article. I do feel, however, that you may have been a bit hard on Drupal !
In section (3) you say that Wordpress is responsive, but you don't mention that Drupal is also responsive (as long as you choose a responsive theme).
You also give the impression that it is not possible to use Drupal unless you are a developer. I agree that Drupal is harder to use than Wordpress for non-technical people, but it is possible to create a decent website in Drupal fairly easily without writing a line of code. There are several articles out there that describe how to do this and I may add one of my own on here soon.