The bigger fail was it was originally hailed as a mechanism to share Xara designs so we all tried building websites to find --- no Layers.
No variant editing either. Your site may well include these but there's no means to access them.

I, like yourself, was led to believe that this was a new venture to share Xara designed documents/web documents on the cloud via browser and Dropbox/Google Drive etc.

It's now morphed out of the Beta into something completely different and something personally I don't even try to understand. I am genuinely confused.

Perhaps Xara could produce a video tutorial on how genuinely XC works. I mean a genuine tutorial, unlike the dreadful videos that are all smoke & mirrors being produced recently (example below). Say more along the lines of Gary P's excellent tutorials within the old XaraXone which taught many, including myself, how to genuinely use Xara software, not slick videos that in no way reflect the workflow of the software in reality.