The WordPress core is a framework which works in conjunction with a WordPress Theme.
Today, we now have the Gutenberg Block Editor as the default editor for WordPress. This change has brought into question that Themes are going to be outdated and won’t be needed because the Gutenberg Block Editor will allow a full front end customization. This presumes that WordPress users will want to customize their website.
There is no truth to this. It’s one of the strange elements in the world of technology the prediction of the end of something because there is a new feature introduced that makes something else supposedly obsolete.
Theme Developers Anticipated WordPress Changes
The front end design has already been implemented by Theme Developers who saw the the picture with WordPress. The user doesn’t want to be a developer, they would like to use the Theme and get on with operating their business or service.
The Theme Developer is someone who knows exactly how to code and produces a Theme which gives the user full control over putting the content onto the web page without having to know code.
The Gutenberg Editor is attempting to bypass the Theme Builders and create a fully functionng front end building system that doesn’t require a Theme. The problem with this idea; the owner of the website doesn’t want to develop the website, operate it and run a business or service all at the same time.

The Problem
This was the problem with WordPress in 2006 when I first starting using it for my website. It’s still the same problem today. Without the Page Builder feature built into the Divi Theme, I might not be using WordPress.
The Solution
If WordPress continues to want to push out the Theme Developers then the Theme Developers will answer by using another core software for their Theme. They are that advanced and are not totally dependant on WordPress.
The Change Won’t Affect Theme Builders
The user-friendly interface of the Page Builders and the popular Premium WordPress Themes will not be discontinued no matter how much the Gutenberg Editor changes.
There are too many websites running on WordPress worldwide. The Gutenberg Editor isn’t going to eliminate the Developers of WordPress Themes. There is always the sensationalist who will speculate on the dire end of something. All it will do is improve the existing features to bypass the Gutenberg Editor.
WordPress does not have a design framework and this is what it is attempting to do with the Gutenberg Block Editor. Most of the Premium WordPress Themes have the design element already built in. A webpage is made up of a series of tables stacked on top of each other separated by dividers for each section.
The sections, rows, and modules have presets which just means you don’t need to adjust the width or height of a column. When you use the drag and drop modular system, you create sections, then add a row. Within the row, you choose a column layout, and then add the desired module. The module is where you enter the content and add a design if it’s not already preset.
Styling the content is one of the remarkable things about a WordPress Theme, and you can style the content yourself. This means you can style a website without the expense.