The problem seems to be that Gutenberg conceptually could be a great rethinking of creating a site look at the theme / layout design level. Unfortunately it is not so good an idea for content creation. The word processor like interface and function for everyday posts is instantly recognizable while the block, block type, and block interaction is instantly confusing and frustrating. I see no path to make that intuitive or easy to use.

Well there is one - create a default block type that looks and functions like the current editor and make all other block types for advanced special case use.