Canonical seem allergic against helping out upstream projects. They rather make their own software, licensed in a specific way that they have exclusive rights to sell proprietary versions. Usually those in-house projects fail and Canonical starts freeloading Red Hat-developed software. That’s why they moved from Unity to Gnome. It’s just easier and cheaper to port bug fixes from the competitor’s product. Canonical was actually caught filing bug reports at Red Hat: https://airlied.livejournal.com/72817.html (they tested if a bug also affected Fedora, then they asked Red Hat to fix the bug upstream. I guess they use fake names now but otherwise continue the practice)