"I work with RedHat, Centos, and Fedora systems every day, and the fact is Red Hat has selected a core piece of software that is neither reliable or safe. It works well enough in most cases, but for any serious tweaking of the system (as most serious shops find themselves needing to do), systemd starts displaying some very nasty behaviours." - I never believe these types of statements/anecdotes.
"Many system engineers, Dev Op guys, and admins have seen this, which is why in the server world there is so much push back against the systemd coolaid." - there isn't that many that push back, just a very vocal few and plenty of thick trolls