Hi Tammie,
I’ve always subscribed to the metaphor that WordPress core is like the engine of a car that can be used to power just about any type of website. Themes and plugins would be interchangable, and would allow the complete customization of the user experience, including the front facing website and the backend editing environment.
As a result of this architecture, many people have created themes and plugins that enable users to pick and choose every aspect of how they want thier WordPress website to be. This includes a lot of page builders that enable users to choose what type of editor they would prefer.
Gutenberg seems like it could be a great page builder option as a plugin, but as part of core will seemingly eliminate the competition while limiting the options available to users. I don’t understand why this is a desirable goal.
Al