Like the author, I am saddened by systemd. I'm not rabidly opposed to it. I use it because Debian uses it and I like debian. And in some ways, I like the consistency better than the plethora of init script/run levels I used to have to deal with. But it does lack (to me) the Unix gestalt of having composable little pieces that could be pretty well put together and are each individually documentable and compose well in conceptual space as well. There was less surprises and nuanced side effects.