I have become a bit more skeptical, because most of the problems that I recently had seemed to be related to systemd. Including some networking problems, long boot delays because systemd decides to wait 90 seconds be default on some conditions that it considers to be errors, and problems such as having to restart systemd-logind manually because of some d-bus update [1]. Before the update, logging in via SSH blocked for a large amount of time.
The most annoying part is that some of the problems take quite a bit of work to debug due to the opaque nature of modern systemd/d-bus/...-based systems.
[1] https://major.io/2015/07/27/very-slow-ssh-logins-on-fedora-2...