Personally I like the idea, but I think the issue is one of official support. Surely having to support anything other than the core package and future dev is a big enough job, without the additional 'package' support an official repository would require.
However on re-reading the question it is about CI recommending a package site. Not sure CI should do that as anyone should be free to start a package site if they wish, without feeling like they are contradicting the very framework they are trying to support.
So all in all I think I am voting No.
Paul.