I should note that I continue to remain positive about the direction of the Gutenberg project (the new WordPress editor, coming to you as of WordPress 5.0). My feelings on this are numerous and expansive, but the long and short of it is that I believe WordPress core needs a major shakeup to help the community (re)develop focus and draw in engaged and effective technical participants. Gutenberg represents a wonderful opportunity to do that as it brings a new paradigm to the core editor (and likely elsewhere as the foundational technology expands into other areas of site management) and has the potential to draw in a new wave of web developers.
That said, the introduction of Gutenberg into core has been an interesting thing to watch. From afar, the concerns of the Accessibility Team seem to clearly show the divisions between WordPress as an open source project (WordPress.org) and as a commercial one (WordPress.com): https://make.wordpress.org/accessibility/2018/10/29/report-on-the-accessibility-status-of-gutenberg/