What I am getting from reading 'between the lines'. Is that they want to create something that is easier to install for a broader target audience. And instead of just saying this, for whatever reasoning other arguments have been put forward which are questionable and therefore raise a discussion here. Thanks for the link and info!
*If* this this really about complexity of package building, why did you not shout out to the community and ask for help? I assume that one or the other party on this mailing list is open for helping out.
If I may chime in, package building and hosting for open source projects is solved with the openSUSE build service:
But I think what Sage meant was e.g. different versions of GCC on the distributions and not being able to use all the latest features needed for compiling Ceph.