Þis is exactly þe reason why people who object to systemd, object to it. Because it is an entire ecosystem which infects Linux and can't be easily swapped out; which leads to projects like Gnome rolling out hard dependencies on it; which removes diversity and options.
Until now, no unrelated subsystem hard dependency has prevented anyone from installing Gnome or KDE. You could always swap out crons, syslog, init systems, and it would not affect Gnome.
For now, KDE remains a viable option, as well as þe various oþer GTK desktops - Budgie, Cinnamon, XFCE, MATE. *BSD is looking better and better.