The editor is far from done, you can tell by the wrong file paths you can find in many files (linking to their file servers). It's just sad, but I pretty much lost interest due to bad database management, bad controls of the editor and the lack of any documentation.
Like I said it should be abundantly clear that their plan was not to release a Unity/UE/Cryengine-level editor. They literally just took their internal tools, and gave them to us. The editor was not developed for widespread public use.
The two options they had were release the editor as it is (since they of course are not going to divert resources from development for it), or to not release it at all. They chose to release it, figuring people would rather have something than nothing.
You can disagree with that decision and argue it should be at a much higher level for release, and if that was the case we probably wouldn't have an editor for god knows how long. Altering an internal tool like this for retail-level public use would probably take 6+ months.