It seems like it has good bones, but taking real territory away from Unity or Godot will be hard without an editor (not just for non-programmers; some game dev tasks are just way easier with a GUI)
Of course it's open so somebody could build one, but it seems to me this deserves to be a first-class citizen
https://bevyengine.org/news/bevy-0-13/#more-editor-experimen...
I used to think this too. But having written a lot of hobby code using Godot (via Gdext, an excellent Rust wrapper for it) I feel the editor is a nice to have but not indispensable.
Very soon into the game you'll find that you need an editor that lets you add your own game abstractions into the game. And at that point you're better off writing an editor "in game" than shoe horning your abstractions into the game engine editor.
There's a bit more nuance I probably outght to the above description but too tired to type it all out on my phone now.
Having an official editor is definitely on the roadmap.