Also, all the issues related to updates and compatibility would be solved if more poeple used GNU Guix package manager. This way, GNU Emacs can integrate Org in its core, and use the "1 release per 9 months" cycle, and also could have package recipes pointing to arbitrary commits if there is a critical feature or critical bug.
Also, GNU Guix users can make and use their own package recipes with ease. Lastly, now a bit more technical: Among other things, GNU Guix project tries to make package recipes in such a way that the package recipe being created or edited avoids depending on specific versions of other packages.