Jolla developers wisely chose Wayland protocol instead of the 30-year-old X11, systemd init manager over initscripts, Qt over Gtk/Gnome, because they were building a modern Linux phone, not a desktop PC, even less a server, even less a *BSD machine. And that happened even if Wayland and systemd were not yet considered - back in 2012/2013 - well-tested and feature-complete.