Linux monoculturalization is not great news. We should deploy e.g. *BSD and illumos as well to prevent having all eggs in one basket.
Anyway, my point was more broadly that Gnome and its surrounding software ecosystem is explicitly and openly Linux-first and have no qualms introducing dependencies like systemd that make it that much harder to get it working everywhere else. I'm pretty sure I've seen Gnome folk straight up say that they simply don't care about anything other than Linux. So unfortunately it's not always that simple to move the apps over.
(KDE, on the other hand, is pretty BSD-friendly.)