> You don't see any complaints on distributions that only support one init which is either runit, s6 or openrc. But when it's systemd somehow people get sad?

Runit will just run 3 scripts then supervise your service directory. _That's it_ and no other choices are made for you. You can compose runit with many other different types of systems according to your own tastes.

Systemd, ostensibly also just an init system, ties you to so many other non-init choices that I can understand the feeling of unease people have towards it.