In reply to Zebulan.

You're correct.

However, RC1 and RC2 were a little buggy when it came to what I needed to do in the theme development space with Gutenberg blocks.

For instance, I needed to dequeue some of the core embed blocks that are useless noise. (ie the college humor block), remove color options, limit fonts etc.

Documentation is not as well organized as say WP_Query, Template Tags, and Conditional Tags. This is very unfortunate.

The handbook is great but it lacks code examples for everything Gutenberg can do and how to best do it.