Like Jeff implies, I'm wondering what happened to "just write"? For those who are blogging, we still need a simple post editor that's not block-based. I use Divi with it's page builder on over 40 client sites, but we still just use the regular old WP post editor for writing and publishing posts. If Gutenberg is really needed and presents a true improvement, great. But it needs a "just write" mode with simple formatting and media insertion tools like the current TinyMCE editor and Calypso have (preferably with markdown). Just make sure there's something simple and easy like that, please.