One of the problems I've seen with no-code editors is that a small to medium sized site might be contracted out to a developer or agency that builds it with WebFlow. Since the layout and style ends up complex enough that the client can't do much with it themselves, they need to go back to the original contractor, or find someone else who specializes in WebFlow, just to make small changes and bug fixes. Maybe that's fundamentally unsolvable due to the difficulty of producing a complicated site, but it feels like it should be possible to do better.
The main criticism I have specifically of this editor is that it feels too similar to WebFlow, but with fewer features, and I can't use it from a browser. The design tokens/local styles might be interesting, but I don't think it's fleshed out enough yet to say whether it's a significant improvement on WebFlow's style selector. I think there's plenty of room to iterate and improve on WYSIWYG builder UX in general though, so I look forward to how the project evolves!