Did you read the article? The author is complaining that aystemd introduced _optional_ security mechanisms for units. If you don’t like these mechanisms, don’t use them in your units.

Systemd didn’t “break” anything at all here. This author’s arcane debugging workflow doesn’t work for certain units who have opted into the new security mechanisms. But that is hardly systemd’s fault.

“Please don't comment on whether someone read an article. "Did you even read the article? It mentions that" can be shortened to "The article mentions that".” --https://news.ycombinator.com/newsguidelines.html