in addition, systemd can also execute timer units periodically. This is functionality that sysv init lacks. You present this as if this makes sysvinit somehow

in addition, systemd can also execute timer units periodically. This is functionality that sysv init lacks. You present this as if this makes sysvinit somehow lesser because of it lacks the ability to execute timer units. Sysvinit doesn't have that because that capability is completely unrelated to what sysvinit does. Although one could argue that the system as a whole provides that functionality through cron anyway, so there'd be no need to have sysvinit do it.