In reply to Drew Jaynes.

I would say that CPTs and metaboxes are common enough to have been considered without blaming working people for "not getting involved". I simply don't have time to watch the GIT of every tool I use. I am busy, far too busy making sites and systems.

I trusted that we all know that CPTs, Taxonomies, and meta boxes are a major feature of WP for developers who are selling bespoke solutions to business clients. It's not like we are talking about something off-label like a WP_List_Table reliance. CPTs with Meta boxes are very common and supported features. For example: how many WooCommerce installs are there? Is [this WooCommerce metabox group](https://docs.woocommerce.com/wp-content/uploads/2013/04/WooCommerce-Shipping-Classes-Product-Variations-Shipping-Class.png) really expected to fit into the side bar?

I first tested Gutenberg in March and installed it on 3rd May 2017 when I had a little time free to check it out. It has grown quickly since then and I assumed any obviously missing features were "coming soon". but there was no indication that meta boxes (of the kind familiar from WooCommerce) would not be included otherwise I would have raised the issue then. I'm a one-man band and constantly meeting deadlines. I do not have free hours.

https://github.com/WordPress/gutenberg/issues/952
partly addresses the raising of concerns, If it is up to me to implement a solution then we are all doomed. I can schedule something for November.