I like the idea, and I look forward to a WordPress plugin that will enable the ability for these cloud blocks to be selected and downloaded (?) and used in a WordPress system.

At the same time, I remain unconvinced that js-only blocks have a place which is meaningful other than the trivial layout based things that blocks can do. Yes, you can build great looking blocks with JavaScript only, and since it's an editor, that is a really big deal. But without any actual support on the backend to "do stuff of substance", it is just visual glitter.

Don't get me wrong, making a big library of visual fluff is a great idea. Layouts for some, tiny American flags for others. (I voted for Kodos!)

But, I usually write server code. I like the Gutenberg editor, but JavaScript just isn't enough to do the things that I tend to do. And it can't be, because the client isn't the place to be doing them.

That said, I do understand that what I consider to be "trivial" is HTML and CSS, which is decidedly not trivial to most people. So yes, it's a good idea. I'm just the wrong person to try to convince of that.