In reply to Anne McCarthy.

If I were to pinpoint what I think the major hurdle Gutenberg needs to cross it would be "layout building." When I say that, I mean it needs to tackle spacing, width, and height in an intuitive way for users. The header I wanted to recreate earlier in the post is a good example of where the site editor needs to be going. From a user standpoint, how do I build that? Forget about the image, fonts, and stylistic aspects. The underlying issue right now is that I don't see any way to lay each of those elements out on the page.

For the alignments, the "wide" and "full" options were simply not showing up on any blocks. In particular, I was looking at the Cover, Group, and Columns blocks. I did update to the latest TT1 Blocks, so I'm not sure if that was an issue. I tested against Gutenberg 10.2.1 and 10.3. Fortunately, some things were already fully aligned, so I just didn't touch anything.

You can see the toolbar alignment option is missing altogether for Columns here:

Same thing happened with the Group block. The Cover block only had left, right, and center.