In reply to mwya.

Jeff has been a fairly vocal suporter of Gutenberg and only recently posted his story on his use of it.

Even if Gutenberg isn't ready for core just yet it is slowly getting to the point where it needs to take user feedback into account. The fact that Jeff wrote a fairly neutral article about current pain points in transitioning to Gutenberg is nothing but good for the project. Not all feedback fits in clearly defined GitHub issues and simple patches.

For the record, I am very much in favour of Gutenberg and its inclusion in core once ready and stable.