If I were a developer

If I were a developer, I would have focused on modernizing the classic editor.
Gutenberg undermines the simplicity and scalability of WordPress.

To make Gutenberg a success, first of all you need to modernize the UI of the Classic editor like Gutenberg. And Gutenberg will have to be offered as an option for the modernly modified Classic editor.

Gutenberg developers have ignored the natural procedure for users to get used to the new editor.

However, I admit that I have put a lot of effort into developing Gutenberg. I will give you three stars.

But…
Wordpress should return to the Classic editor.
Make the Classic editor modern / simple and then release Gutenberg(by optional).