What are you talking about? Systemd (pid 1) just does socket activation, it has no high level functionality. Yes, there are related programs like systemd-timesyncd, but they are completely separate processes, and can be managed separately and even omitted altogether.
Now, traditional BSD inetd had discard, chargen, echo, ... protocol support, which means that it was actually more integrated that systemd.
Now, traditional BSD inetd had discard, chargen, echo, ... protocol support, which means that it was actually more integrated that systemd.