Very interesting article and discussion. I use both WP and Drupal for different types of projects.

I've recently discovered the Paragraphs module for Drupal. I have to say that it is a very good step forward in creating structured content:
https://www.drupal.org/project/paragraphs.

Instead of putting all their content in one WYSIWYG editor, users can choose on-the-fly between pre-defined Paragraph Types independent from one another.

Paragraphs can have any number of fields and can be anything you want from a simple text block or image to a complex slideshow or multi columned layout.

The developer simply sets up the likely paragraph types required by the project. The content creator then chooses the paragraph and enters the content. No worries about formatting, style and layout. These have already been setup by the developer.

The nearest WP equivalent that I've found is ACF's flexible content field:
https://www.advancedcustomfields.com/resources/flexible-content/

Apart from page builders (which I'm learning to dislike) is there anything else similar?