Somehow the new CC Libraries are not thought through. There are two things which are really a problem in my opinion.

First:
When I publish a library I now have all components, styles and colors from XD in all applications. Which is ok for colors but what should I do with the styles and components in print for example? They are completely useless because I will define other styles and components in InDesign. So now the libraries are getting more and more filled up with elements you don't need.

Second:
I use always the same template for style guides. For a new project I saved the template from a previous project in a new folder and published it. The original style guide was still in the original folder and linked to the corresponding prototype. Now I published the new style guide and suddenly all links in the other prototype are gone and there is no possibility to relink the original style guide to the corresponding prototype. So all components lost their link! How can you repair that???

Honestly, the older version of the libraries with separated style guides were much more useful.