As far as I know it essentially boils down to systemd doing too many things.
Critics argue that systemd is too complex and monolithic, making it harder to troubleshoot. They worry about a single point of failure, as all services are managed by one daemon, and voice concerns about tight integration with the Linux kernel, which could limit portability to other systems.
It’s funny because in a lot of contexts I’m pretty anti-comma but here we’ve got a confusing headline that would’ve traditionally included the comma for clarity.
I went to DL it and try it out, and… dude, I hate Sourceforge. I know how privileged this sounds, but I’m not spending a half hour DLing something that I can DL in a minute and a half somewhere else.